980449657 has 8 divisors (see below), whose sum is σ = 1092339072. Its totient is φ = 872353200.

The previous prime is 980449649. The next prime is 980449711. The reversal of 980449657 is 756944089.

It is a happy number.

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 980449657 - 2³ = 980449649 is a prime.

It is a super-2 number, since 2×980449657² = 1922563059822835298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (980449607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947694 + ... + 948727.

It is an arithmetic number, because the mean of its divisors is an integer number (136542384).

Almost surely, 2^980449657 is an apocalyptic number.

It is an amenable number.

980449657 is a deficient number, since it is larger than the sum of its proper divisors (111889415).

980449657 is a wasteful number, since it uses less digits than its factorization.

980449657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896479.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 980449657 is about 31312.1327443533. The cubic root of 980449657 is about 993.4402832035.

It can be divided in two parts, 98044 and 9657, that added together give a palindrome (107701).

The spelling of 980449657 in words is "nine hundred eighty million, four hundred forty-nine thousand, six hundred fifty-seven".