686322954 has 12 divisors (see below), whose sum is σ = 1487033106. Its totient is φ = 228774312.

The previous prime is 686322937. The next prime is 686322971. The reversal of 686322954 is 459223686.

686322954 is a `hidden beast` number, since 6 + 8 + 632 + 2 + 9 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (686322937) and next prime (686322971).

It can be written as a sum of positive squares in only one way, i.e., 521071929 + 165251025 = 22827^2 + 12855^2 .

It is a super-2 number, since 2×686322954² = 942078394374572232, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19064509 + ... + 19064544.

Almost surely, 2^686322954 is an apocalyptic number.

686322954 is an abundant number, since it is smaller than the sum of its proper divisors (800710152).

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

686322954 is a wasteful number, since it uses less digits than its factorization.

686322954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38129061 (or 38129058 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 686322954 is about 26197.7662024838. The cubic root of 686322954 is about 882.0831133981.

The spelling of 686322954 in words is "six hundred eighty-six million, three hundred twenty-two thousand, nine hundred fifty-four".