86780292 has 24 divisors (see below), whose sum is σ = 206309376. Its totient is φ = 28380768.

The previous prime is 86780279. The next prime is 86780293. The reversal of 86780292 is 29208768.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86780293) 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, 67588 + ... + 68859.

It is an arithmetic number, because the mean of its divisors is an integer number (8596224).

Almost surely, 2^86780292 is an apocalyptic number.

It is an amenable number.

86780292 is an abundant number, since it is smaller than the sum of its proper divisors (119529084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86780292 is a wasteful number, since it uses less digits than its factorization.

86780292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136507 (or 136505 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 86780292 is about 9315.5940229274. The cubic root of 86780292 is about 442.7314452042.

The spelling of 86780292 in words is "eighty-six million, seven hundred eighty thousand, two hundred ninety-two".