73673730 has 48 divisors (see below), whose sum is σ = 206289720. Its totient is φ = 18134784.

The previous prime is 73673707. The next prime is 73673777. The reversal of 73673730 is 3737637.

It can be written as a sum of positive squares in 4 ways, for example, as 48483369 + 25190361 = 6963^2 + 5019^2 .

It is a super-2 number, since 2×73673730² = 10855636984225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30315 + ... + 32654.

Almost surely, 2^73673730 is an apocalyptic number.

73673730 is an abundant number, since it is smaller than the sum of its proper divisors (132615990).

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

73673730 is a wasteful number, since it uses less digits than its factorization.

73673730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62995 (or 62992 counting only the distinct ones).

The product of its (nonzero) digits is 55566, while the sum is 36.

The square root of 73673730 is about 8583.3402588969. The cubic root of 73673730 is about 419.2157132449.

The spelling of 73673730 in words is "seventy-three million, six hundred seventy-three thousand, seven hundred thirty".