97406291 has 4 divisors (see below), whose sum is σ = 97426032. Its totient is φ = 97386552.

The previous prime is 97406279. The next prime is 97406303. The reversal of 97406291 is 19260479.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (97406279) and next prime (97406303).

It is a cyclic number.

It is not a de Polignac number, because 97406291 - 2²⁶ = 30297427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97406191) 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, 4781 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (24356508).

Almost surely, 2^97406291 is an apocalyptic number.

97406291 is a deficient number, since it is larger than the sum of its proper divisors (19741).

97406291 is an equidigital number, since it uses as much as digits as its factorization.

97406291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19740.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 97406291 is about 9869.4625486903. The cubic root of 97406291 is about 460.1107027199.

The spelling of 97406291 in words is "ninety-seven million, four hundred six thousand, two hundred ninety-one".