97630309 has 16 divisors (see below), whose sum is σ = 116553600. Its totient is φ = 80028864.

The previous prime is 97630289. The next prime is 97630363. The reversal of 97630309 is 90303679.

It is a cyclic number.

It is not a de Polignac number, because 97630309 - 2¹⁵ = 97597541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97630369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12087 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (7284600).

Almost surely, 2^97630309 is an apocalyptic number.

It is an amenable number.

97630309 is a deficient number, since it is larger than the sum of its proper divisors (18923291).

97630309 is a wasteful number, since it uses less digits than its factorization.

97630309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 97630309 is about 9880.8050785348. The cubic root of 97630309 is about 460.4631582690.

The spelling of 97630309 in words is "ninety-seven million, six hundred thirty thousand, three hundred nine".