70724928 has 28 divisors (see below), whose sum is σ = 187126880. Its totient is φ = 23574912.

The previous prime is 70724923. The next prime is 70724933. The reversal of 70724928 is 82942707.

It is an interprime number because it is at equal distance from previous prime (70724923) and next prime (70724933).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70724923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183988 + ... + 184371.

Almost surely, 2^70724928 is an apocalyptic number.

It is an amenable number.

70724928 is an abundant number, since it is smaller than the sum of its proper divisors (116401952).

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

70724928 is a wasteful number, since it uses less digits than its factorization.

70724928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368374 (or 368364 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 70724928 is about 8409.8114128677. The cubic root of 70724928 is about 413.5463302715.

The spelling of 70724928 in words is "seventy million, seven hundred twenty-four thousand, nine hundred twenty-eight".