34722731 has 4 divisors (see below), whose sum is σ = 34740672. Its totient is φ = 34704792.

The previous prime is 34722719. The next prime is 34722757. The reversal of 34722731 is 13722743.

34722731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34722731 - 2¹⁰ = 34721707 is a prime.

It is a super-2 number, since 2×34722731² = 2411336096196722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34722694 and 34722703.

It is not an unprimeable number, because it can be changed into a prime (34722431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (8685168).

Almost surely, 2^34722731 is an apocalyptic number.

34722731 is a deficient number, since it is larger than the sum of its proper divisors (17941).

34722731 is a wasteful number, since it uses less digits than its factorization.

34722731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17940.

The product of its digits is 7056, while the sum is 29.

The square root of 34722731 is about 5892.5996809558. The cubic root of 34722731 is about 326.2405635277.

It can be divided in two parts, 34722 and 731, that added together give a palindrome (35453).

The spelling of 34722731 in words is "thirty-four million, seven hundred twenty-two thousand, seven hundred thirty-one".