92138687 has 8 divisors (see below), whose sum is σ = 92806560. Its totient is φ = 91473760.

The previous prime is 92138677. The next prime is 92138689. The reversal of 92138687 is 78683129.

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 92138687 - 2¹⁶ = 92073151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92138689) 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, 123638 + ... + 124380.

It is an arithmetic number, because the mean of its divisors is an integer number (11600820).

Almost surely, 2^92138687 is an apocalyptic number.

92138687 is a deficient number, since it is larger than the sum of its proper divisors (667873).

92138687 is a wasteful number, since it uses less digits than its factorization.

92138687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473.

The product of its digits is 145152, while the sum is 44.

The square root of 92138687 is about 9598.8898837313. The cubic root of 92138687 is about 451.6624712116.

The spelling of 92138687 in words is "ninety-two million, one hundred thirty-eight thousand, six hundred eighty-seven".