72634949 has 2 divisors, whose sum is σ = 72634950. Its totient is φ = 72634948.

The previous prime is 72634873. The next prime is 72634973. The reversal of 72634949 is 94943627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60684100 + 11950849 = 7790^2 + 3457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72634949 is a prime.

It is a super-3 number, since 3×72634949³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72634979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36317474 + 36317475.

It is an arithmetic number, because the mean of its divisors is an integer number (36317475).

Almost surely, 2^72634949 is an apocalyptic number.

It is an amenable number.

72634949 is a deficient number, since it is larger than the sum of its proper divisors (1).

72634949 is an equidigital number, since it uses as much as digits as its factorization.

72634949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 72634949 is about 8522.6139769439. The cubic root of 72634949 is about 417.2361012894.

The spelling of 72634949 in words is "seventy-two million, six hundred thirty-four thousand, nine hundred forty-nine".