11672778 has 32 divisors (see below), whose sum is σ = 26623296. Its totient is φ = 3379968.

The previous prime is 11672767. The next prime is 11672789. The reversal of 11672778 is 87727611.

It is an interprime number because it is at equal distance from previous prime (11672767) and next prime (11672789).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3076 + ... + 5727.

It is an arithmetic number, because the mean of its divisors is an integer number (831978).

Almost surely, 2^11672778 is an apocalyptic number.

11672778 is an abundant number, since it is smaller than the sum of its proper divisors (14950518).

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

11672778 is a wasteful number, since it uses less digits than its factorization.

11672778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8838.

The product of its digits is 32928, while the sum is 39.

The square root of 11672778 is about 3416.5447457922. The cubic root of 11672778 is about 226.8426655951.

The spelling of 11672778 in words is "eleven million, six hundred seventy-two thousand, seven hundred seventy-eight".