80187669 has 24 divisors (see below), whose sum is σ = 120836352. Its totient is φ = 51183360.

The previous prime is 80187661. The next prime is 80187671. The reversal of 80187669 is 96678108.

It is a happy number.

It is not a de Polignac number, because 80187669 - 2³ = 80187661 is a prime.

It is a super-2 number, since 2×80187669² = 12860124519307122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80187661) 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, 25582 + ... + 28544.

It is an arithmetic number, because the mean of its divisors is an integer number (5034848).

Almost surely, 2^80187669 is an apocalyptic number.

It is an amenable number.

80187669 is a deficient number, since it is larger than the sum of its proper divisors (40648683).

80187669 is a wasteful number, since it uses less digits than its factorization.

80187669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 80187669 is about 8954.7567806167. The cubic root of 80187669 is about 431.2236087189.

The spelling of 80187669 in words is "eighty million, one hundred eighty-seven thousand, six hundred sixty-nine".