70797121 has 2 divisors, whose sum is σ = 70797122. Its totient is φ = 70797120.

The previous prime is 70797113. The next prime is 70797137. The reversal of 70797121 is 12179707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61402896 + 9394225 = 7836^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 70797121 - 2³ = 70797113 is a prime.

It is not a weakly prime, because it can be changed into another prime (70797191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35398560 + 35398561.

It is an arithmetic number, because the mean of its divisors is an integer number (35398561).

Almost surely, 2^70797121 is an apocalyptic number.

It is an amenable number.

70797121 is a deficient number, since it is larger than the sum of its proper divisors (1).

70797121 is an equidigital number, since it uses as much as digits as its factorization.

70797121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 70797121 is about 8414.1025071008. The cubic root of 70797121 is about 413.6869925930.

The spelling of 70797121 in words is "seventy million, seven hundred ninety-seven thousand, one hundred twenty-one".