70499961 has 12 divisors (see below), whose sum is σ = 116380992. Its totient is φ = 40285656.

The previous prime is 70499941. The next prime is 70499993. The reversal of 70499961 is 16999407.

70499961 is a `hidden beast` number, since 70 + 499 + 96 + 1 = 666.

It is not a de Polignac number, because 70499961 - 2²⁵ = 36945529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70499941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559461 + ... + 559586.

It is an arithmetic number, because the mean of its divisors is an integer number (9698416).

Almost surely, 2^70499961 is an apocalyptic number.

It is an amenable number.

70499961 is a deficient number, since it is larger than the sum of its proper divisors (45881031).

70499961 is a wasteful number, since it uses less digits than its factorization.

70499961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119060 (or 1119057 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 70499961 is about 8396.4254894568. The cubic root of 70499961 is about 413.1073851074.

The spelling of 70499961 in words is "seventy million, four hundred ninety-nine thousand, nine hundred sixty-one".