4739679521 has 4 divisors (see below), whose sum is σ = 4739956992. Its totient is φ = 4739402052.

The previous prime is 4739679517. The next prime is 4739679533. The reversal of 4739679521 is 1259769374.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1259769374 = 2 ⋅629884687.

It is a cyclic number.

It is not a de Polignac number, because 4739679521 - 2² = 4739679517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4739679121) 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, 111305 + ... + 147878.

It is an arithmetic number, because the mean of its divisors is an integer number (1184989248).

Almost surely, 2^4739679521 is an apocalyptic number.

It is an amenable number.

4739679521 is a deficient number, since it is larger than the sum of its proper divisors (277471).

4739679521 is a wasteful number, since it uses less digits than its factorization.

4739679521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277470.

The product of its digits is 2857680, while the sum is 53.

The square root of 4739679521 is about 68845.3304226220. The cubic root of 4739679521 is about 1679.7693751117.

The spelling of 4739679521 in words is "four billion, seven hundred thirty-nine million, six hundred seventy-nine thousand, five hundred twenty-one".