97667138 has 16 divisors (see below), whose sum is σ = 149059680. Its totient is φ = 47985696.

The previous prime is 97667123. The next prime is 97667149. The reversal of 97667138 is 83176679.

It is a super-2 number, since 2×97667138² = 19077739690222088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97667092 and 97667101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43733 + ... + 45911.

It is an arithmetic number, because the mean of its divisors is an integer number (9316230).

Almost surely, 2^97667138 is an apocalyptic number.

97667138 is a deficient number, since it is larger than the sum of its proper divisors (51392542).

97667138 is a wasteful number, since it uses less digits than its factorization.

97667138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 381024, while the sum is 47.

The square root of 97667138 is about 9882.6685667384. The cubic root of 97667138 is about 460.5210510343.

The spelling of 97667138 in words is "ninety-seven million, six hundred sixty-seven thousand, one hundred thirty-eight".