70864763 has 4 divisors (see below), whose sum is σ = 72201888. Its totient is φ = 69527640.

The previous prime is 70864751. The next prime is 70864811. The reversal of 70864763 is 36746807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36746807 = 643 ⋅57149.

It is a cyclic number.

It is not a de Polignac number, because 70864763 - 2¹⁶ = 70799227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70864763.

It is not an unprimeable number, because it can be changed into a prime (70864733) 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, 668483 + ... + 668588.

It is an arithmetic number, because the mean of its divisors is an integer number (18050472).

Almost surely, 2^70864763 is an apocalyptic number.

70864763 is a deficient number, since it is larger than the sum of its proper divisors (1337125).

70864763 is a wasteful number, since it uses less digits than its factorization.

70864763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337124.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 70864763 is about 8418.1211086560. The cubic root of 70864763 is about 413.8187009075.

The spelling of 70864763 in words is "seventy million, eight hundred sixty-four thousand, seven hundred sixty-three".