97813379 has 4 divisors (see below), whose sum is σ = 98222880. Its totient is φ = 97403880.

The previous prime is 97813369. The next prime is 97813381. The reversal of 97813379 is 97331879.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97813379 - 2¹⁶ = 97747843 is a prime.

It is a super-2 number, since 2×97813379² = 19134914222795282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97813369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204392 + ... + 204869.

It is an arithmetic number, because the mean of its divisors is an integer number (24555720).

Almost surely, 2^97813379 is an apocalyptic number.

97813379 is a deficient number, since it is larger than the sum of its proper divisors (409501).

97813379 is a wasteful number, since it uses less digits than its factorization.

97813379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409500.

The product of its digits is 285768, while the sum is 47.

The square root of 97813379 is about 9890.0646610626. The cubic root of 97813379 is about 460.7507887417.

The spelling of 97813379 in words is "ninety-seven million, eight hundred thirteen thousand, three hundred seventy-nine".