104640724 has 6 divisors (see below), whose sum is σ = 183121274. Its totient is φ = 52320360.

The previous prime is 104640721. The next prime is 104640727. The reversal of 104640724 is 427046401.

It is an interprime number because it is at equal distance from previous prime (104640721) and next prime (104640727).

It can be written as a sum of positive squares in only one way, i.e., 101364624 + 3276100 = 10068^2 + 1810^2 .

It is a super-2 number, since 2×104640724² = 21899362238488352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104640692 and 104640701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104640721) 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 as a sum of consecutive naturals, namely, 13080087 + ... + 13080094.

Almost surely, 2^104640724 is an apocalyptic number.

It is an amenable number.

104640724 is a deficient number, since it is larger than the sum of its proper divisors (78480550).

104640724 is a wasteful number, since it uses less digits than its factorization.

104640724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26160185 (or 26160183 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 104640724 is about 10229.4048702747. The cubic root of 104640724 is about 471.2307024442.

The spelling of 104640724 in words is "one hundred four million, six hundred forty thousand, seven hundred twenty-four".