874949479 has 4 divisors (see below), whose sum is σ = 875159080. Its totient is φ = 874739880.

The previous prime is 874949473. The next prime is 874949483. The reversal of 874949479 is 974949478.

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

It is a cyclic number.

It is not a de Polignac number, because 874949479 - 2⁷ = 874949351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874949473) 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, 98409 + ... + 106930.

It is an arithmetic number, because the mean of its divisors is an integer number (218789770).

Almost surely, 2^874949479 is an apocalyptic number.

874949479 is a deficient number, since it is larger than the sum of its proper divisors (209601).

874949479 is a wasteful number, since it uses less digits than its factorization.

874949479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209600.

The product of its digits is 18289152, while the sum is 61.

The square root of 874949479 is about 29579.5449424091. The cubic root of 874949479 is about 956.4471828040.

Subtracting 874949479 from its reverse (974949478), we obtain a palindrome (99999999).

The spelling of 874949479 in words is "eight hundred seventy-four million, nine hundred forty-nine thousand, four hundred seventy-nine".