72626371 has 2 divisors, whose sum is σ = 72626372. Its totient is φ = 72626370.

The previous prime is 72626369. The next prime is 72626381. The reversal of 72626371 is 17362627.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72626371 - 2¹ = 72626369 is a prime.

Together with 72626369, it forms a pair of twin primes.

It is equal to p_4263397 and since 72626371 and 4263397 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (72626311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36313185 + 36313186.

It is an arithmetic number, because the mean of its divisors is an integer number (36313186).

Almost surely, 2^72626371 is an apocalyptic number.

72626371 is a deficient number, since it is larger than the sum of its proper divisors (1).

72626371 is an equidigital number, since it uses as much as digits as its factorization.

72626371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 72626371 is about 8522.1107127284. The cubic root of 72626371 is about 417.2196758072.

Adding to 72626371 its reverse (17362627), we get a palindrome (89988998).

The spelling of 72626371 in words is "seventy-two million, six hundred twenty-six thousand, three hundred seventy-one".