97213444 has 6 divisors (see below), whose sum is σ = 170123534. Its totient is φ = 48606720.

The previous prime is 97213421. The next prime is 97213451. The reversal of 97213444 is 44431279.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 47087044 = 7080^2 + 6862^2 .

It is a super-2 number, since 2×97213444² = 18900907388682272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12151677 + ... + 12151684.

Almost surely, 2^97213444 is an apocalyptic number.

It is an amenable number.

97213444 is a deficient number, since it is larger than the sum of its proper divisors (72910090).

97213444 is a wasteful number, since it uses less digits than its factorization.

97213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24303365 (or 24303363 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 97213444 is about 9859.6878246727. The cubic root of 97213444 is about 459.8068565330.

The spelling of 97213444 in words is "ninety-seven million, two hundred thirteen thousand, four hundred forty-four".