73621569 has 24 divisors (see below), whose sum is σ = 114860928. Its totient is φ = 41821920.

The previous prime is 73621567. The next prime is 73621573. The reversal of 73621569 is 96512637.

It is not a de Polignac number, because 73621569 - 2¹ = 73621567 is a prime.

It is a super-2 number, since 2×73621569² = 10840270844043522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73621567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25224 + ... + 27990.

It is an arithmetic number, because the mean of its divisors is an integer number (4785872).

Almost surely, 2^73621569 is an apocalyptic number.

It is an amenable number.

73621569 is a deficient number, since it is larger than the sum of its proper divisors (41239359).

73621569 is a wasteful number, since it uses less digits than its factorization.

73621569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965 (or 2958 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 73621569 is about 8580.3012184888. The cubic root of 73621569 is about 419.1167549804.

The spelling of 73621569 in words is "seventy-three million, six hundred twenty-one thousand, five hundred sixty-nine".