70653920 has 24 divisors (see below), whose sum is σ = 166920264. Its totient is φ = 28261504.

The previous prime is 70653917. The next prime is 70653923. The reversal of 70653920 is 2935607.

It is an interprime number because it is at equal distance from previous prime (70653917) and next prime (70653923).

It is a super-2 number, since 2×70653920² = 9983952822732800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70653923) 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, 220634 + ... + 220953.

It is an arithmetic number, because the mean of its divisors is an integer number (6955011).

Almost surely, 2^70653920 is an apocalyptic number.

It is an amenable number.

70653920 is an abundant number, since it is smaller than the sum of its proper divisors (96266344).

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

70653920 is a wasteful number, since it uses less digits than its factorization.

70653920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441602 (or 441594 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 70653920 is about 8405.5886171047. The cubic root of 70653920 is about 413.4078834198.

The spelling of 70653920 in words is "seventy million, six hundred fifty-three thousand, nine hundred twenty".