72676773 has 24 divisors (see below), whose sum is σ = 113539608. Its totient is φ = 44531712.

The previous prime is 72676771. The next prime is 72676787. The reversal of 72676773 is 37767627.

It can be written as a sum of positive squares in 4 ways, for example, as 40220964 + 32455809 = 6342^2 + 5697^2 .

It is not a de Polignac number, because 72676773 - 2¹ = 72676771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72676771) 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, 28861 + ... + 31277.

It is an arithmetic number, because the mean of its divisors is an integer number (4730817).

Almost surely, 2^72676773 is an apocalyptic number.

It is an amenable number.

72676773 is a deficient number, since it is larger than the sum of its proper divisors (40862835).

72676773 is a wasteful number, since it uses less digits than its factorization.

72676773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693 (or 2690 counting only the distinct ones).

The product of its digits is 518616, while the sum is 45.

The square root of 72676773 is about 8525.0673311124. The cubic root of 72676773 is about 417.3161689639.

The spelling of 72676773 in words is "seventy-two million, six hundred seventy-six thousand, seven hundred seventy-three".