70722 has 12 divisors (see below), whose sum is σ = 153270. Its totient is φ = 23568.

The previous prime is 70717. The next prime is 70729. The reversal of 70722 is 22707.

70722 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 68121 + 2601 = 261^2 + 51^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 3929 = 70722 / (7 + 0 + 7 + 2 + 2).

70722 is an undulating number in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 70695 and 70704.

It is not an unprimeable number, because it can be changed into a prime (70729) by changing a digit.

70722 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1947 + ... + 1982.

2⁷⁰⁷²² is an apocalyptic number.

70722 is an abundant number, since it is smaller than the sum of its proper divisors (82548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70722 is a wasteful number, since it uses less digits than its factorization.

70722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937 (or 3934 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 70722 is about 265.9360825462. The cubic root of 70722 is about 41.3540623277.

It can be divided in two parts, 707 and 22, that added together give a 6-th power (729 = 3⁶).

The spelling of 70722 in words is "seventy thousand, seven hundred twenty-two", and thus it is an iban number.