97755487 has 2 divisors, whose sum is σ = 97755488. Its totient is φ = 97755486.

The previous prime is 97755461. The next prime is 97755547. The reversal of 97755487 is 78455779.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97755487 is a prime.

It is a super-2 number, since 2×97755487² = 19112270477214338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97755787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48877743 + 48877744.

It is an arithmetic number, because the mean of its divisors is an integer number (48877744).

Almost surely, 2^97755487 is an apocalyptic number.

97755487 is a deficient number, since it is larger than the sum of its proper divisors (1).

97755487 is an equidigital number, since it uses as much as digits as its factorization.

97755487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 52.

The square root of 97755487 is about 9887.1374522659. The cubic root of 97755487 is about 460.6598705426.

The spelling of 97755487 in words is "ninety-seven million, seven hundred fifty-five thousand, four hundred eighty-seven".