72683477 has 2 divisors, whose sum is σ = 72683478. Its totient is φ = 72683476.

The previous prime is 72683467. The next prime is 72683509. The reversal of 72683477 is 77438627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65060356 + 7623121 = 8066^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 72683477 - 2⁴ = 72683461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72683467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36341738 + 36341739.

It is an arithmetic number, because the mean of its divisors is an integer number (36341739).

Almost surely, 2^72683477 is an apocalyptic number.

It is an amenable number.

72683477 is a deficient number, since it is larger than the sum of its proper divisors (1).

72683477 is an equidigital number, since it uses as much as digits as its factorization.

72683477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 44.

The square root of 72683477 is about 8525.4605154209. The cubic root of 72683477 is about 417.3290002142.

The spelling of 72683477 in words is "seventy-two million, six hundred eighty-three thousand, four hundred seventy-seven".