13679775 has 36 divisors (see below), whose sum is σ = 24718408. Its totient is φ = 7231680.

The previous prime is 13679767. The next prime is 13679789. The reversal of 13679775 is 57797631.

It is not a de Polignac number, because 13679775 - 2³ = 13679767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13679775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36489 + ... + 36861.

Almost surely, 2^13679775 is an apocalyptic number.

13679775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13679775 is a deficient number, since it is larger than the sum of its proper divisors (11038633).

13679775 is a wasteful number, since it uses less digits than its factorization.

13679775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 544 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 13679775 is about 3698.6179851399. The cubic root of 13679775 is about 239.1624450741.

The spelling of 13679775 in words is "thirteen million, six hundred seventy-nine thousand, seven hundred seventy-five".