70537971 has 16 divisors (see below), whose sum is σ = 107664128. Its totient is φ = 40240800.

The previous prime is 70537969. The next prime is 70537979. The reversal of 70537971 is 17973507.

It is a happy number.

It is not a de Polignac number, because 70537971 - 2¹ = 70537969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70537979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12081 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (6729008).

Almost surely, 2^70537971 is an apocalyptic number.

70537971 is a deficient number, since it is larger than the sum of its proper divisors (37126157).

70537971 is a wasteful number, since it uses less digits than its factorization.

70537971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562.

The product of its (nonzero) digits is 46305, while the sum is 39.

The square root of 70537971 is about 8398.6886476402. The cubic root of 70537971 is about 413.1816139457.

The spelling of 70537971 in words is "seventy million, five hundred thirty-seven thousand, nine hundred seventy-one".