4971951 has 12 divisors (see below), whose sum is σ = 7207720. Its totient is φ = 3302640.

The previous prime is 4971943. The next prime is 4971959. The reversal of 4971951 is 1591794.

It is an interprime number because it is at equal distance from previous prime (4971943) and next prime (4971959).

It is not a de Polignac number, because 4971951 - 2³ = 4971943 is a prime.

It is an Ulam number.

It is a Duffinian number.

4971951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2145 + ... + 3813.

Almost surely, 2^4971951 is an apocalyptic number.

4971951 is a deficient number, since it is larger than the sum of its proper divisors (2235769).

4971951 is a wasteful number, since it uses less digits than its factorization.

4971951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006 (or 2003 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 4971951 is about 2229.7872095785. The cubic root of 4971951 is about 170.6772407762.

It can be divided in two parts, 49719 and 51, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 4971951 in words is "four million, nine hundred seventy-one thousand, nine hundred fifty-one".