70860817 has 2 divisors, whose sum is σ = 70860818. Its totient is φ = 70860816.

The previous prime is 70860799. The next prime is 70860863. The reversal of 70860817 is 71806807.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 21242881 = 7044^2 + 4609^2 .

It is a cyclic number.

It is not a de Polignac number, because 70860817 - 2¹¹ = 70858769 is a prime.

It is not a weakly prime, because it can be changed into another prime (70860877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35430408 + 35430409.

It is an arithmetic number, because the mean of its divisors is an integer number (35430409).

Almost surely, 2^70860817 is an apocalyptic number.

It is an amenable number.

70860817 is a deficient number, since it is larger than the sum of its proper divisors (1).

70860817 is an equidigital number, since it uses as much as digits as its factorization.

70860817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 70860817 is about 8417.8867300529. The cubic root of 70860817 is about 413.8110198032.

The spelling of 70860817 in words is "seventy million, eight hundred sixty thousand, eight hundred seventeen".