497761138 has 16 divisors (see below), whose sum is σ = 853916544. Its totient is φ = 213173280.

The previous prime is 497761129. The next prime is 497761153. The reversal of 497761138 is 831167794.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8731 + ... + 32737.

It is an arithmetic number, because the mean of its divisors is an integer number (53369784).

Almost surely, 2^497761138 is an apocalyptic number.

497761138 is a deficient number, since it is larger than the sum of its proper divisors (356155406).

497761138 is a wasteful number, since it uses less digits than its factorization.

497761138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25497.

The product of its digits is 254016, while the sum is 46.

The square root of 497761138 is about 22310.5611314462. The cubic root of 497761138 is about 792.5140960849.

The spelling of 497761138 in words is "four hundred ninety-seven million, seven hundred sixty-one thousand, one hundred thirty-eight".