70612489 has 4 divisors (see below), whose sum is σ = 71260420. Its totient is φ = 69964560.

The previous prime is 70612481. The next prime is 70612501. The reversal of 70612489 is 98421607.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39476089 + 31136400 = 6283^2 + 5580^2 .

It is a cyclic number.

It is not a de Polignac number, because 70612489 - 2³ = 70612481 is a prime.

It is a super-2 number, since 2×70612489² = 9972247205550242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70612481) 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, 323802 + ... + 324019.

It is an arithmetic number, because the mean of its divisors is an integer number (17815105).

Almost surely, 2^70612489 is an apocalyptic number.

It is an amenable number.

70612489 is a deficient number, since it is larger than the sum of its proper divisors (647931).

70612489 is a wasteful number, since it uses less digits than its factorization.

70612489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647930.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 70612489 is about 8403.1237644105. The cubic root of 70612489 is about 413.3270610535.

The spelling of 70612489 in words is "seventy million, six hundred twelve thousand, four hundred eighty-nine".