70270665 has 16 divisors (see below), whose sum is σ = 113467200. Its totient is φ = 37132992.

The previous prime is 70270657. The next prime is 70270667. The reversal of 70270665 is 56607207.

It is not a de Polignac number, because 70270665 - 2³ = 70270657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70270667) 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, 19855 + ... + 23124.

It is an arithmetic number, because the mean of its divisors is an integer number (7091700).

Almost surely, 2^70270665 is an apocalyptic number.

It is an amenable number.

70270665 is a deficient number, since it is larger than the sum of its proper divisors (43196535).

70270665 is a wasteful number, since it uses less digits than its factorization.

70270665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43096.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 70270665 is about 8382.7599870210. The cubic root of 70270665 is about 412.6590314263.

The spelling of 70270665 in words is "seventy million, two hundred seventy thousand, six hundred sixty-five".