73416636 has 18 divisors (see below), whose sum is σ = 185581032. Its totient is φ = 24472200.

The previous prime is 73416631. The next prime is 73416641. The reversal of 73416636 is 63661437.

It is a happy number.

73416636 is a `hidden beast` number, since 7 + 3 + 4 + 16 + 636 = 666.

It is an interprime number because it is at equal distance from previous prime (73416631) and next prime (73416641).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2039351 = 73416636 / (7 + 3 + 4 + 1 + 6 + 6 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 73416636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73416631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1019640 + ... + 1019711.

Almost surely, 2^73416636 is an apocalyptic number.

It is an amenable number.

73416636 is an abundant number, since it is smaller than the sum of its proper divisors (112164396).

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

73416636 is a wasteful number, since it uses less digits than its factorization.

73416636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039361 (or 2039356 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 73416636 is about 8568.3508331534. The cubic root of 73416636 is about 418.7275091210.

The spelling of 73416636 in words is "seventy-three million, four hundred sixteen thousand, six hundred thirty-six".