72577752 has 32 divisors (see below), whose sum is σ = 195402480. Its totient is φ = 22331520.

The previous prime is 72577741. The next prime is 72577763. The reversal of 72577752 is 25777527.

It is an interprime number because it is at equal distance from previous prime (72577741) and next prime (72577763).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 115999 + ... + 116622.

Almost surely, 2^72577752 is an apocalyptic number.

It is an amenable number.

72577752 is an abundant number, since it is smaller than the sum of its proper divisors (122824728).

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

72577752 is a wasteful number, since it uses less digits than its factorization.

72577752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232643 (or 232639 counting only the distinct ones).

The product of its digits is 240100, while the sum is 42.

The square root of 72577752 is about 8519.2577141439. The cubic root of 72577752 is about 417.1265538401.

The spelling of 72577752 in words is "seventy-two million, five hundred seventy-seven thousand, seven hundred fifty-two".