72377836 has 12 divisors (see below), whose sum is σ = 126721728. Its totient is φ = 36171632.

The previous prime is 72377831. The next prime is 72377861. The reversal of 72377836 is 63877327.

It is a super-2 number, since 2×72377836² = 10477102288085792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72377792 and 72377801.

It is not an unprimeable number, because it can be changed into a prime (72377831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11685 + ... + 16771.

It is an arithmetic number, because the mean of its divisors is an integer number (10560144).

Almost surely, 2^72377836 is an apocalyptic number.

It is an amenable number.

72377836 is a deficient number, since it is larger than the sum of its proper divisors (54343892).

72377836 is a wasteful number, since it uses less digits than its factorization.

72377836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8648 (or 8646 counting only the distinct ones).

The product of its digits is 296352, while the sum is 43.

The square root of 72377836 is about 8507.5164413594. The cubic root of 72377836 is about 416.7432088360.

The spelling of 72377836 in words is "seventy-two million, three hundred seventy-seven thousand, eight hundred thirty-six".