70659940 has 24 divisors (see below), whose sum is σ = 159800760. Its totient is φ = 26089728.

The previous prime is 70659937. The next prime is 70659949. The reversal of 70659940 is 4995607.

It can be written as a sum of positive squares in 4 ways, for example, as 13264164 + 57395776 = 3642^2 + 7576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70659893 and 70659902.

It is not an unprimeable number, because it can be changed into a prime (70659949) 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 7 ways as a sum of consecutive naturals, for example, 135625 + ... + 136144.

It is an arithmetic number, because the mean of its divisors is an integer number (6658365).

Almost surely, 2^70659940 is an apocalyptic number.

It is an amenable number.

70659940 is an abundant number, since it is smaller than the sum of its proper divisors (89140820).

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

70659940 is a wasteful number, since it uses less digits than its factorization.

70659940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271791 (or 271789 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 70659940 is about 8405.9467045658. The cubic root of 70659940 is about 413.4196244281.

The spelling of 70659940 in words is "seventy million, six hundred fifty-nine thousand, nine hundred forty".