70625890 has 16 divisors (see below), whose sum is σ = 127685880. Its totient is φ = 28126080.

The previous prime is 70625857. The next prime is 70625897. The reversal of 70625890 is 9852607.

It can be written as a sum of positive squares in 4 ways, for example, as 70509609 + 116281 = 8397^2 + 341^2 .

It is not an unprimeable number, because it can be changed into a prime (70625897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13131 + ... + 17710.

Almost surely, 2^70625890 is an apocalyptic number.

70625890 is a deficient number, since it is larger than the sum of its proper divisors (57059990).

70625890 is a wasteful number, since it uses less digits than its factorization.

70625890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31077.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 70625890 is about 8403.9211086254. The cubic root of 70625890 is about 413.3532067852.

The spelling of 70625890 in words is "seventy million, six hundred twenty-five thousand, eight hundred ninety".