70731023 has 8 divisors (see below), whose sum is σ = 78091776. Its totient is φ = 63525400.

The previous prime is 70731019. The next prime is 70731061. The reversal of 70731023 is 32013707.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70731023 - 2² = 70731019 is a prime.

It is a super-2 number, since 2×70731023² = 10005755229253058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70731023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70731083) 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 7 ways as a sum of consecutive naturals, for example, 37823 + ... + 39648.

It is an arithmetic number, because the mean of its divisors is an integer number (9761472).

Almost surely, 2^70731023 is an apocalyptic number.

70731023 is a deficient number, since it is larger than the sum of its proper divisors (7360753).

70731023 is a wasteful number, since it uses less digits than its factorization.

70731023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77565.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 70731023 is about 8410.1737794174. The cubic root of 70731023 is about 413.5582095930.

The spelling of 70731023 in words is "seventy million, seven hundred thirty-one thousand, twenty-three".