86699290 has 8 divisors (see below), whose sum is σ = 156058740. Its totient is φ = 34679712.

The previous prime is 86699287. The next prime is 86699311. The reversal of 86699290 is 9299668.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82500889 + 4198401 = 9083^2 + 2049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4334955 + ... + 4334974.

Almost surely, 2^86699290 is an apocalyptic number.

86699290 is a deficient number, since it is larger than the sum of its proper divisors (69359450).

86699290 is a wasteful number, since it uses less digits than its factorization.

86699290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8669936.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 86699290 is about 9311.2453517239. The cubic root of 86699290 is about 442.5936516432.

The spelling of 86699290 in words is "eighty-six million, six hundred ninety-nine thousand, two hundred ninety".