70652661 has 4 divisors (see below), whose sum is σ = 94203552. Its totient is φ = 47101772.

The previous prime is 70652653. The next prime is 70652707. The reversal of 70652661 is 16625607.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16625607 = 3 ⋅5541869.

It is a cyclic number.

It is not a de Polignac number, because 70652661 - 2³ = 70652653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70652651) 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 3 ways as a sum of consecutive naturals, for example, 11775441 + ... + 11775446.

It is an arithmetic number, because the mean of its divisors is an integer number (23550888).

Almost surely, 2^70652661 is an apocalyptic number.

It is an amenable number.

70652661 is a deficient number, since it is larger than the sum of its proper divisors (23550891).

70652661 is a wasteful number, since it uses less digits than its factorization.

70652661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23550890.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 70652661 is about 8405.5137261205. The cubic root of 70652661 is about 413.4054278655.

The spelling of 70652661 in words is "seventy million, six hundred fifty-two thousand, six hundred sixty-one".