97896381 has 16 divisors (see below), whose sum is σ = 143577408. Its totient is φ = 59328720.

The previous prime is 97896343. The next prime is 97896389. The reversal of 97896381 is 18369879.

It is not a de Polignac number, because 97896381 - 2⁶ = 97896317 is a prime.

It is a super-2 number, since 2×97896381² = 19167402825794322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97896389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8266 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (8973588).

Almost surely, 2^97896381 is an apocalyptic number.

It is an amenable number.

97896381 is a deficient number, since it is larger than the sum of its proper divisors (45681027).

97896381 is a wasteful number, since it uses less digits than its factorization.

97896381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24553 (or 24531 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 97896381 is about 9894.2600026480. The cubic root of 97896381 is about 460.8810791138.

The spelling of 97896381 in words is "ninety-seven million, eight hundred ninety-six thousand, three hundred eighty-one".