842920479 has 16 divisors (see below), whose sum is σ = 1250709600. Its totient is φ = 561074688.

The previous prime is 842920453. The next prime is 842920483. The reversal of 842920479 is 974029248.

It is not a de Polignac number, because 842920479 - 2¹⁷ = 842789407 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842920489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6274 + ... + 41535.

It is an arithmetic number, because the mean of its divisors is an integer number (78169350).

Almost surely, 2^842920479 is an apocalyptic number.

842920479 is a deficient number, since it is larger than the sum of its proper divisors (407789121).

842920479 is a wasteful number, since it uses less digits than its factorization.

842920479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48471 (or 48465 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 842920479 is about 29033.0928252572. The cubic root of 842920479 is about 944.6310174483.

The spelling of 842920479 in words is "eight hundred forty-two million, nine hundred twenty thousand, four hundred seventy-nine".