97264987 has 2 divisors, whose sum is σ = 97264988. Its totient is φ = 97264986.

The previous prime is 97264967. The next prime is 97265029. The reversal of 97264987 is 78946279.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97264987 is a prime.

It is a super-2 number, since 2×97264987² = 18920955392220338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97264957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48632493 + 48632494.

It is an arithmetic number, because the mean of its divisors is an integer number (48632494).

Almost surely, 2^97264987 is an apocalyptic number.

97264987 is a deficient number, since it is larger than the sum of its proper divisors (1).

97264987 is an equidigital number, since it uses as much as digits as its factorization.

97264987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 97264987 is about 9862.3013034484. The cubic root of 97264987 is about 459.8881060546. Note that the first 3 decimals are identical.

The spelling of 97264987 in words is "ninety-seven million, two hundred sixty-four thousand, nine hundred eighty-seven".