1672779975 has 24 divisors (see below), whose sum is σ = 2767739520. Its totient is φ = 891479520.

The previous prime is 1672779971. The next prime is 1672779989. The reversal of 1672779975 is 5799772761.

1672779975 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1672779975 - 2² = 1672779971 is a prime.

It is a super-2 number, since 2×1672779975² = 5596385689522001250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672779971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101782 + ... + 117068.

It is an arithmetic number, because the mean of its divisors is an integer number (115322480).

Almost surely, 2^1672779975 is an apocalyptic number.

1672779975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1672779975 is a deficient number, since it is larger than the sum of its proper divisors (1094959545).

1672779975 is a wasteful number, since it uses less digits than its factorization.

1672779975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16759 (or 16754 counting only the distinct ones).

The product of its digits is 11668860, while the sum is 60.

The square root of 1672779975 is about 40899.6329445632. The cubic root of 1672779975 is about 1187.0789583965.

The spelling of 1672779975 in words is "one billion, six hundred seventy-two million, seven hundred seventy-nine thousand, nine hundred seventy-five".