70616863 has 4 divisors (see below), whose sum is σ = 74333560. Its totient is φ = 66900168.

The previous prime is 70616857. The next prime is 70616867. The reversal of 70616863 is 36861607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70616863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70616867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858320 + ... + 1858357.

It is an arithmetic number, because the mean of its divisors is an integer number (18583390).

Almost surely, 2^70616863 is an apocalyptic number.

70616863 is a deficient number, since it is larger than the sum of its proper divisors (3716697).

70616863 is a wasteful number, since it uses less digits than its factorization.

70616863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716696.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 70616863 is about 8403.3840207383. The cubic root of 70616863 is about 413.3355952154.

It can be divided in two parts, 7061 and 6863, that added together give a square (13924 = 118²).

The spelling of 70616863 in words is "seventy million, six hundred sixteen thousand, eight hundred sixty-three".