647496098 has 18 divisors (see below), whose sum is σ = 1026136251. Its totient is φ = 306384804.

The previous prime is 647496097. The next prime is 647496121. The reversal of 647496098 is 890694746.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 323748049 + 323748049 = 17993^2 + 17993^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=17993.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647496097) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 683261 + ... + 684207.

Almost surely, 2^647496098 is an apocalyptic number.

647496098 is a deficient number, since it is larger than the sum of its proper divisors (378640153).

647496098 is an frugal number, since it uses more digits than its factorization.

647496098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 647496098 is about 25445.9446277791. The cubic root of 647496098 is about 865.1253777076.

The spelling of 647496098 in words is "six hundred forty-seven million, four hundred ninety-six thousand, ninety-eight".