1078604657 has 8 divisors (see below), whose sum is σ = 1168290984. Its totient is φ = 989877888.

The previous prime is 1078604641. The next prime is 1078604663. The reversal of 1078604657 is 7564068701.

It can be written as a sum of positive squares in 4 ways, for example, as 545502736 + 533101921 = 23356^2 + 23089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1078604657 - 2⁴ = 1078604641 is a prime.

It is a super-2 number, since 2×1078604657² = 2326776012204175298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078604677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237548 + ... + 242045.

It is an arithmetic number, because the mean of its divisors is an integer number (146036373).

Almost surely, 2^1078604657 is an apocalyptic number.

It is an amenable number.

1078604657 is a deficient number, since it is larger than the sum of its proper divisors (89686327).

1078604657 is a wasteful number, since it uses less digits than its factorization.

1078604657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479779.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 1078604657 is about 32842.1171211601. The cubic root of 1078604657 is about 1025.5435251792.

The spelling of 1078604657 in words is "one billion, seventy-eight million, six hundred four thousand, six hundred fifty-seven".