74117636 has 6 divisors (see below), whose sum is σ = 129705870. Its totient is φ = 37058816.

The previous prime is 74117633. The next prime is 74117639. The reversal of 74117636 is 63671147.

It is an interprime number because it is at equal distance from previous prime (74117633) and next prime (74117639).

It can be written as a sum of positive squares in only one way, i.e., 67897600 + 6220036 = 8240^2 + 2494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74117596 and 74117605.

It is not an unprimeable number, because it can be changed into a prime (74117633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9264701 + ... + 9264708.

It is an arithmetic number, because the mean of its divisors is an integer number (21617645).

Almost surely, 2^74117636 is an apocalyptic number.

It is an amenable number.

74117636 is a deficient number, since it is larger than the sum of its proper divisors (55588234).

74117636 is a wasteful number, since it uses less digits than its factorization.

74117636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18529413 (or 18529411 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 74117636 is about 8609.1600054825. The cubic root of 74117636 is about 420.0559940463.

The spelling of 74117636 in words is "seventy-four million, one hundred seventeen thousand, six hundred thirty-six".