497674981 has 2 divisors, whose sum is σ = 497674982. Its totient is φ = 497674980.

The previous prime is 497674973. The next prime is 497675021. The reversal of 497674981 is 189476794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414773956 + 82901025 = 20366^2 + 9105^2 .

It is a cyclic number.

It is not a de Polignac number, because 497674981 - 2³ = 497674973 is a prime.

It is a super-2 number, since 2×497674981² = 495360773426700722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497674181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248837490 + 248837491.

It is an arithmetic number, because the mean of its divisors is an integer number (248837491).

Almost surely, 2^497674981 is an apocalyptic number.

It is an amenable number.

497674981 is a deficient number, since it is larger than the sum of its proper divisors (1).

497674981 is an equidigital number, since it uses as much as digits as its factorization.

497674981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 55.

The square root of 497674981 is about 22308.6301910270. The cubic root of 497674981 is about 792.4683682771.

The spelling of 497674981 in words is "four hundred ninety-seven million, six hundred seventy-four thousand, nine hundred eighty-one".