70856458 has 4 divisors (see below), whose sum is σ = 106284690. Its totient is φ = 35428228.

The previous prime is 70856447. The next prime is 70856477. The reversal of 70856458 is 85465807.

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

It can be written as a sum of positive squares in only one way, i.e., 64112049 + 6744409 = 8007^2 + 2597^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17714113 + ... + 17714116.

Almost surely, 2^70856458 is an apocalyptic number.

70856458 is a deficient number, since it is larger than the sum of its proper divisors (35428232).

70856458 is a wasteful number, since it uses less digits than its factorization.

70856458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35428231.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 70856458 is about 8417.6278131074. The cubic root of 70856458 is about 413.8025344404.

The spelling of 70856458 in words is "seventy million, eight hundred fifty-six thousand, four hundred fifty-eight".