80377469 has 4 divisors (see below), whose sum is σ = 80676540. Its totient is φ = 80078400.

The previous prime is 80377459. The next prime is 80377471. The reversal of 80377469 is 96477308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 76125625 = 2062^2 + 8725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80377469 is a prime.

It is a super-2 number, since 2×80377469² = 12921075045691922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80377459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149132 + ... + 149669.

It is an arithmetic number, because the mean of its divisors is an integer number (20169135).

Almost surely, 2^80377469 is an apocalyptic number.

It is an amenable number.

80377469 is a deficient number, since it is larger than the sum of its proper divisors (299071).

80377469 is a wasteful number, since it uses less digits than its factorization.

80377469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299070.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 80377469 is about 8965.3482364044. The cubic root of 80377469 is about 431.5635685136.

The spelling of 80377469 in words is "eighty million, three hundred seventy-seven thousand, four hundred sixty-nine".