80403477 has 32 divisors (see below), whose sum is σ = 134728704. Its totient is φ = 41433600.

The previous prime is 80403473. The next prime is 80403487. The reversal of 80403477 is 77430408.

It is a happy number.

It is not a de Polignac number, because 80403477 - 2² = 80403473 is a prime.

It is a super-2 number, since 2×80403477² = 12929438227379058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80403473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28933 + ... + 31589.

It is an arithmetic number, because the mean of its divisors is an integer number (4210272).

Almost surely, 2^80403477 is an apocalyptic number.

It is an amenable number.

80403477 is a deficient number, since it is larger than the sum of its proper divisors (54325227).

80403477 is a wasteful number, since it uses less digits than its factorization.

80403477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 80403477 is about 8966.7985925859. The cubic root of 80403477 is about 431.6101109715.

The spelling of 80403477 in words is "eighty million, four hundred three thousand, four hundred seventy-seven".