70321924 has 6 divisors (see below), whose sum is σ = 123063374. Its totient is φ = 35160960.

The previous prime is 70321921. The next prime is 70321967. The reversal of 70321924 is 42912307.

It can be written as a sum of positive squares in only one way, i.e., 36216324 + 34105600 = 6018^2 + 5840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70321892 and 70321901.

It is not an unprimeable number, because it can be changed into a prime (70321921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8790237 + ... + 8790244.

Almost surely, 2^70321924 is an apocalyptic number.

It is an amenable number.

70321924 is a deficient number, since it is larger than the sum of its proper divisors (52741450).

70321924 is a wasteful number, since it uses less digits than its factorization.

70321924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17580485 (or 17580483 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 70321924 is about 8385.8168355861. The cubic root of 70321924 is about 412.7593452065.

The spelling of 70321924 in words is "seventy million, three hundred twenty-one thousand, nine hundred twenty-four".