1679800957 has 8 divisors (see below), whose sum is σ = 1778970816. Its totient is φ = 1580670912.

The previous prime is 1679800949. The next prime is 1679800987. The reversal of 1679800957 is 7590089761.

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 1679800957 - 2³ = 1679800949 is a prime.

It is a super-3 number, since 3×1679800957³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679800907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158808 + ... + 169054.

It is an arithmetic number, because the mean of its divisors is an integer number (222371352).

Almost surely, 2^1679800957 is an apocalyptic number.

1679800957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1679800957 is a deficient number, since it is larger than the sum of its proper divisors (99169859).

1679800957 is a wasteful number, since it uses less digits than its factorization.

1679800957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19907.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 1679800957 is about 40985.3749159380. The cubic root of 1679800957 is about 1188.7374404422.

The spelling of 1679800957 in words is "one billion, six hundred seventy-nine million, eight hundred thousand, nine hundred fifty-seven".