16487772 has 48 divisors (see below), whose sum is σ = 44174592. Its totient is φ = 4688640.

The previous prime is 16487761. The next prime is 16487789. The reversal of 16487772 is 27778461.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27508 + ... + 28100.

It is an arithmetic number, because the mean of its divisors is an integer number (920304).

Almost surely, 2^16487772 is an apocalyptic number.

16487772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16487772 is an abundant number, since it is smaller than the sum of its proper divisors (27686820).

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

16487772 is a wasteful number, since it uses less digits than its factorization.

16487772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 936 counting only the distinct ones).

The product of its digits is 131712, while the sum is 42.

The square root of 16487772 is about 4060.5137605973. The cubic root of 16487772 is about 254.5192634307.

The spelling of 16487772 in words is "sixteen million, four hundred eighty-seven thousand, seven hundred seventy-two".