70652981 has 4 divisors (see below), whose sum is σ = 80746272. Its totient is φ = 60559692.

The previous prime is 70652971. The next prime is 70652993. The reversal of 70652981 is 18925607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70652981 - 2²⁶ = 3544117 is a prime.

It is a super-2 number, since 2×70652981² = 9983687448372722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70652921) 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, 5046635 + ... + 5046648.

It is an arithmetic number, because the mean of its divisors is an integer number (20186568).

Almost surely, 2^70652981 is an apocalyptic number.

It is an amenable number.

70652981 is a deficient number, since it is larger than the sum of its proper divisors (10093291).

70652981 is a wasteful number, since it uses less digits than its factorization.

70652981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093290.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 70652981 is about 8405.5327612234. The cubic root of 70652981 is about 413.4060519964.

The spelling of 70652981 in words is "seventy million, six hundred fifty-two thousand, nine hundred eighty-one".