11277972 has 36 divisors (see below), whose sum is σ = 28610400. Its totient is φ = 3745872.

The previous prime is 11277949. The next prime is 11277983. The reversal of 11277972 is 27977211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18529 + ... + 19127.

Almost surely, 2^11277972 is an apocalyptic number.

11277972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11277972 is an abundant number, since it is smaller than the sum of its proper divisors (17332428).

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

11277972 is a wasteful number, since it uses less digits than its factorization.

11277972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1127 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 11277972 is about 3358.2691970716. The cubic root of 11277972 is about 224.2557930369.

The spelling of 11277972 in words is "eleven million, two hundred seventy-seven thousand, nine hundred seventy-two".