97421572 has 6 divisors (see below), whose sum is σ = 170487758. Its totient is φ = 48710784.

The previous prime is 97421557. The next prime is 97421609. The reversal of 97421572 is 27512479.

It can be written as a sum of positive squares in only one way, i.e., 60746436 + 36675136 = 7794^2 + 6056^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12177693 + ... + 12177700.

Almost surely, 2^97421572 is an apocalyptic number.

It is an amenable number.

97421572 is a deficient number, since it is larger than the sum of its proper divisors (73066186).

97421572 is a wasteful number, since it uses less digits than its factorization.

97421572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24355397 (or 24355395 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 97421572 is about 9870.2366739608. The cubic root of 97421572 is about 460.1347620284.

The spelling of 97421572 in words is "ninety-seven million, four hundred twenty-one thousand, five hundred seventy-two".