70863667 has 24 divisors (see below), whose sum is σ = 89830656. Its totient is φ = 54645888.

The previous prime is 70863649. The next prime is 70863671. The reversal of 70863667 is 76636807.

It is not a de Polignac number, because 70863667 - 2¹⁵ = 70830899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70863607) 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, 45768 + ... + 47290.

It is an arithmetic number, because the mean of its divisors is an integer number (3742944).

Almost surely, 2^70863667 is an apocalyptic number.

70863667 is a deficient number, since it is larger than the sum of its proper divisors (18966989).

70863667 is a wasteful number, since it uses less digits than its factorization.

70863667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 70863667 is about 8418.0560107426. The cubic root of 70863667 is about 413.8165675123.

The spelling of 70863667 in words is "seventy million, eight hundred sixty-three thousand, six hundred sixty-seven".