70382921 has 24 divisors (see below), whose sum is σ = 85471680. Its totient is φ = 56761056.

The previous prime is 70382903. The next prime is 70382933. The reversal of 70382921 is 12928307.

It is not a de Polignac number, because 70382921 - 2⁶ = 70382857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70382021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307235 + ... + 307463.

It is an arithmetic number, because the mean of its divisors is an integer number (3561320).

Almost surely, 2^70382921 is an apocalyptic number.

It is an amenable number.

70382921 is a deficient number, since it is larger than the sum of its proper divisors (15088759).

70382921 is a wasteful number, since it uses less digits than its factorization.

70382921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 70382921 is about 8389.4529619040. The cubic root of 70382921 is about 412.8786527394.

The spelling of 70382921 in words is "seventy million, three hundred eighty-two thousand, nine hundred twenty-one".