97655407 has 2 divisors, whose sum is σ = 97655408. Its totient is φ = 97655406.

The previous prime is 97655387. The next prime is 97655471. The reversal of 97655407 is 70455679.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97655407 - 2¹¹ = 97653359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97655477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48827703 + 48827704.

It is an arithmetic number, because the mean of its divisors is an integer number (48827704).

Almost surely, 2^97655407 is an apocalyptic number.

97655407 is a deficient number, since it is larger than the sum of its proper divisors (1).

97655407 is an equidigital number, since it uses as much as digits as its factorization.

97655407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 97655407 is about 9882.0750351331. The cubic root of 97655407 is about 460.5026122538.

The spelling of 97655407 in words is "ninety-seven million, six hundred fifty-five thousand, four hundred seven".