97307290 has 8 divisors (see below), whose sum is σ = 175153140. Its totient is φ = 38922912.

The previous prime is 97307257. The next prime is 97307297. The reversal of 97307290 is 9270379.

It can be written as a sum of positive squares in 2 ways, for example, as 96059601 + 1247689 = 9801^2 + 1117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97307297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4865355 + ... + 4865374.

Almost surely, 2^97307290 is an apocalyptic number.

97307290 is a deficient number, since it is larger than the sum of its proper divisors (77845850).

97307290 is a wasteful number, since it uses less digits than its factorization.

97307290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9730736.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 97307290 is about 9864.4457522965. The cubic root of 97307290 is about 459.9547687095.

It can be divided in two parts, 9730 and 7290, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 97307290 in words is "ninety-seven million, three hundred seven thousand, two hundred ninety".