72629987 has 2 divisors, whose sum is σ = 72629988. Its totient is φ = 72629986.

The previous prime is 72629957. The next prime is 72630017. The reversal of 72629987 is 78992627.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (72629957) and next prime (72630017).

It is a cyclic number.

It is not a de Polignac number, because 72629987 - 2⁶ = 72629923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72629917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36314993 + 36314994.

It is an arithmetic number, because the mean of its divisors is an integer number (36314994).

Almost surely, 2^72629987 is an apocalyptic number.

72629987 is a deficient number, since it is larger than the sum of its proper divisors (1).

72629987 is an equidigital number, since it uses as much as digits as its factorization.

72629987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 50.

The square root of 72629987 is about 8522.3228641023. The cubic root of 72629987 is about 417.2266000199.

The spelling of 72629987 in words is "seventy-two million, six hundred twenty-nine thousand, nine hundred eighty-seven".