70689544 has 16 divisors (see below), whose sum is σ = 132894720. Its totient is φ = 35250960.

The previous prime is 70689539. The next prime is 70689547. The reversal of 70689544 is 44598607.

It is a self number, because there is not a number n which added to its sum of digits gives 70689544.

It is not an unprimeable number, because it can be changed into a prime (70689547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8472 + ... + 14599.

It is an arithmetic number, because the mean of its divisors is an integer number (8305920).

Almost surely, 2^70689544 is an apocalyptic number.

It is an amenable number.

70689544 is a deficient number, since it is larger than the sum of its proper divisors (62205176).

70689544 is a wasteful number, since it uses less digits than its factorization.

70689544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23460 (or 23456 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 70689544 is about 8407.7074164126. The cubic root of 70689544 is about 413.4773524030.

The spelling of 70689544 in words is "seventy million, six hundred eighty-nine thousand, five hundred forty-four".