86742190 has 32 divisors (see below), whose sum is σ = 163010880. Its totient is φ = 33191424.

The previous prime is 86742169. The next prime is 86742233. The reversal of 86742190 is 9124768.

It is a super-2 number, since 2×86742190² = 15048415051992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31447 + ... + 34093.

It is an arithmetic number, because the mean of its divisors is an integer number (5094090).

Almost surely, 2^86742190 is an apocalyptic number.

86742190 is a deficient number, since it is larger than the sum of its proper divisors (76268690).

86742190 is a wasteful number, since it uses less digits than its factorization.

86742190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 86742190 is about 9313.5487328945. The cubic root of 86742190 is about 442.6666400794. Note that the first 4 decimals are identical.

The spelling of 86742190 in words is "eighty-six million, seven hundred forty-two thousand, one hundred ninety".