86969450 has 24 divisors (see below), whose sum is σ = 171280332. Its totient is φ = 32741120.

The previous prime is 86969431. The next prime is 86969453. The reversal of 86969450 is 5496968.

It can be written as a sum of positive squares in 6 ways, for example, as 60949249 + 26020201 = 7807^2 + 5101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86969395 and 86969404.

It is not an unprimeable number, because it can be changed into a prime (86969453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50309 + ... + 52008.

Almost surely, 2^86969450 is an apocalyptic number.

86969450 is a deficient number, since it is larger than the sum of its proper divisors (84310882).

86969450 is a wasteful number, since it uses less digits than its factorization.

86969450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102346 (or 102341 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 86969450 is about 9325.7412574015. The cubic root of 86969450 is about 443.0528907698.

The spelling of 86969450 in words is "eighty-six million, nine hundred sixty-nine thousand, four hundred fifty".