479691137 has 2 divisors, whose sum is σ = 479691138. Its totient is φ = 479691136.

The previous prime is 479691131. The next prime is 479691143. The reversal of 479691137 is 731196974.

It is a balanced prime because it is at equal distance from previous prime (479691131) and next prime (479691143).

It can be written as a sum of positive squares in only one way, i.e., 411116176 + 68574961 = 20276^2 + 8281^2 .

It is a cyclic number.

It is not a de Polignac number, because 479691137 - 2⁶ = 479691073 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 479691091 and 479691100.

It is not a weakly prime, because it can be changed into another prime (479691131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239845568 + 239845569.

It is an arithmetic number, because the mean of its divisors is an integer number (239845569).

Almost surely, 2^479691137 is an apocalyptic number.

It is an amenable number.

479691137 is a deficient number, since it is larger than the sum of its proper divisors (1).

479691137 is an equidigital number, since it uses as much as digits as its factorization.

479691137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 479691137 is about 21901.8523645832. The cubic root of 479691137 is about 782.8055536217.

The spelling of 479691137 in words is "four hundred seventy-nine million, six hundred ninety-one thousand, one hundred thirty-seven".