80071477 has 4 divisors (see below), whose sum is σ = 81085120. Its totient is φ = 79057836.

The previous prime is 80071471. The next prime is 80071489. The reversal of 80071477 is 77417008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80071477 - 2³ = 80071469 is a prime.

It is a super-2 number, since 2×80071477² = 12822882857923058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80071471) 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, 506703 + ... + 506860.

It is an arithmetic number, because the mean of its divisors is an integer number (20271280).

Almost surely, 2^80071477 is an apocalyptic number.

It is an amenable number.

80071477 is a deficient number, since it is larger than the sum of its proper divisors (1013643).

80071477 is a wasteful number, since it uses less digits than its factorization.

80071477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013642.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 80071477 is about 8948.2667036695. The cubic root of 80071477 is about 431.0152269138.

The spelling of 80071477 in words is "eighty million, seventy-one thousand, four hundred seventy-seven".