97220389 has 8 divisors (see below), whose sum is σ = 113819328. Its totient is φ = 81299040.

The previous prime is 97220381. The next prime is 97220401. The reversal of 97220389 is 98302279.

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

It is a cyclic number.

It is not a de Polignac number, because 97220389 - 2³ = 97220381 is a prime.

It is a super-2 number, since 2×97220389² = 18903608074622642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97220381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169087 + ... + 169660.

It is an arithmetic number, because the mean of its divisors is an integer number (14227416).

Almost surely, 2^97220389 is an apocalyptic number.

It is an amenable number.

97220389 is a deficient number, since it is larger than the sum of its proper divisors (16598939).

97220389 is a wasteful number, since it uses less digits than its factorization.

97220389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338795.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 97220389 is about 9860.0400100608. The cubic root of 97220389 is about 459.8178059190.

The spelling of 97220389 in words is "ninety-seven million, two hundred twenty thousand, three hundred eighty-nine".