70861506 has 32 divisors (see below), whose sum is σ = 145578048. Its totient is φ = 22982400.

The previous prime is 70861501. The next prime is 70861513. The reversal of 70861506 is 60516807.

It is not an unprimeable number, because it can be changed into a prime (70861501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117606 + ... + 118206.

It is an arithmetic number, because the mean of its divisors is an integer number (4549314).

Almost surely, 2^70861506 is an apocalyptic number.

70861506 is an abundant number, since it is smaller than the sum of its proper divisors (74716542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70861506 is a wasteful number, since it uses less digits than its factorization.

70861506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 70861506 is about 8417.9276547141. The cubic root of 70861506 is about 413.8123609998.

The spelling of 70861506 in words is "seventy million, eight hundred sixty-one thousand, five hundred six".