97070851 has 2 divisors, whose sum is σ = 97070852. Its totient is φ = 97070850.

The previous prime is 97070837. The next prime is 97070861. The reversal of 97070851 is 15807079.

It is a strong prime.

It is an emirp because it is prime and its reverse (15807079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97070851 - 2¹⁵ = 97038083 is a prime.

It is a super-2 number, since 2×97070851² = 18845500227728402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97070851.

It is not a weakly prime, because it can be changed into another prime (97070861) 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 as a sum of consecutive naturals, namely, 48535425 + 48535426.

It is an arithmetic number, because the mean of its divisors is an integer number (48535426).

Almost surely, 2^97070851 is an apocalyptic number.

97070851 is a deficient number, since it is larger than the sum of its proper divisors (1).

97070851 is an equidigital number, since it uses as much as digits as its factorization.

97070851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 97070851 is about 9852.4540597762. The cubic root of 97070851 is about 459.5819311192.

The spelling of 97070851 in words is "ninety-seven million, seventy thousand, eight hundred fifty-one".