97887407 has 2 divisors, whose sum is σ = 97887408. Its totient is φ = 97887406.

The previous prime is 97887359. The next prime is 97887443. The reversal of 97887407 is 70478879.

It is a strong prime.

It is an emirp because it is prime and its reverse (70478879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97887407 - 2¹⁸ = 97625263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97887497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48943703 + 48943704.

It is an arithmetic number, because the mean of its divisors is an integer number (48943704).

Almost surely, 2^97887407 is an apocalyptic number.

97887407 is a deficient number, since it is larger than the sum of its proper divisors (1).

97887407 is an equidigital number, since it uses as much as digits as its factorization.

97887407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 97887407 is about 9893.8064969960. The cubic root of 97887407 is about 460.8669959470.

The spelling of 97887407 in words is "ninety-seven million, eight hundred eighty-seven thousand, four hundred seven".