97816402 has 8 divisors (see below), whose sum is σ = 155355516. Its totient is φ = 46031232.

The previous prime is 97816399. The next prime is 97816421. The reversal of 97816402 is 20461879.

It can be written as a sum of positive squares in 2 ways, for example, as 95472441 + 2343961 = 9771^2 + 1531^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438443 + ... + 1438510.

Almost surely, 2^97816402 is an apocalyptic number.

97816402 is a deficient number, since it is larger than the sum of its proper divisors (57539114).

97816402 is a wasteful number, since it uses less digits than its factorization.

97816402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876972.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 97816402 is about 9890.2174900252. The cubic root of 97816402 is about 460.7555353156.

The spelling of 97816402 in words is "ninety-seven million, eight hundred sixteen thousand, four hundred two".