70670761 has 4 divisors (see below), whose sum is σ = 80766592. Its totient is φ = 60574932.

The previous prime is 70670753. The next prime is 70670771. The reversal of 70670761 is 16707607.

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 70670761 - 2³ = 70670753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70670711) 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, 5047905 + ... + 5047918.

It is an arithmetic number, because the mean of its divisors is an integer number (20191648).

Almost surely, 2^70670761 is an apocalyptic number.

It is an amenable number.

70670761 is a deficient number, since it is larger than the sum of its proper divisors (10095831).

70670761 is a wasteful number, since it uses less digits than its factorization.

70670761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095830.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 70670761 is about 8406.5903314007. The cubic root of 70670761 is about 413.4407273114.

The spelling of 70670761 in words is "seventy million, six hundred seventy thousand, seven hundred sixty-one".