70928641 has 16 divisors (see below), whose sum is σ = 86071680. Its totient is φ = 57058560.

The previous prime is 70928633. The next prime is 70928657. The reversal of 70928641 is 14682907.

It is a cyclic number.

It is not a de Polignac number, because 70928641 - 2³ = 70928633 is a prime.

It is a super-2 number, since 2×70928641² = 10061744228213762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70928641.

It is not an unprimeable number, because it can be changed into a prime (70928621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59986 + ... + 61156.

It is an arithmetic number, because the mean of its divisors is an integer number (5379480).

Almost surely, 2^70928641 is an apocalyptic number.

It is an amenable number.

70928641 is a deficient number, since it is larger than the sum of its proper divisors (15143039).

70928641 is a wasteful number, since it uses less digits than its factorization.

70928641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 70928641 is about 8421.9143310770. The cubic root of 70928641 is about 413.9430032700.

The spelling of 70928641 in words is "seventy million, nine hundred twenty-eight thousand, six hundred forty-one".