79477471 has 8 divisors (see below), whose sum is σ = 81091584. Its totient is φ = 77877240.

The previous prime is 79477469. The next prime is 79477511. The reversal of 79477471 is 17477497.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79477471 - 2¹ = 79477469 is a prime.

It is a super-3 number, since 3×79477471³ (a number of 25 digits) contains 333 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 (79477451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8506 + ... + 15208.

It is an arithmetic number, because the mean of its divisors is an integer number (10136448).

Almost surely, 2^79477471 is an apocalyptic number.

79477471 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79477471 is a deficient number, since it is larger than the sum of its proper divisors (1614113).

79477471 is a wasteful number, since it uses less digits than its factorization.

79477471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941.

The product of its digits is 345744, while the sum is 46.

The square root of 79477471 is about 8915.0137969607. The cubic root of 79477471 is about 429.9467592276.

The spelling of 79477471 in words is "seventy-nine million, four hundred seventy-seven thousand, four hundred seventy-one".