1679488764 has 12 divisors (see below), whose sum is σ = 3918807144. Its totient is φ = 559829584.

The previous prime is 1679488739. The next prime is 1679488771. The reversal of 1679488764 is 4678849761.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1679488764³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1679488698 and 1679488707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69978687 + ... + 69978710.

It is an arithmetic number, because the mean of its divisors is an integer number (326567262).

Almost surely, 2^1679488764 is an apocalyptic number.

It is an amenable number.

1679488764 is an abundant number, since it is smaller than the sum of its proper divisors (2239318380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1679488764 is a wasteful number, since it uses less digits than its factorization.

1679488764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139957404 (or 139957402 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The square root of 1679488764 is about 40981.5661486967. The cubic root of 1679488764 is about 1188.6637931251.

The spelling of 1679488764 in words is "one billion, six hundred seventy-nine million, four hundred eighty-eight thousand, seven hundred sixty-four".