2949247477 has 4 divisors (see below), whose sum is σ = 3217360896. Its totient is φ = 2681134060.

The previous prime is 2949247471. The next prime is 2949247537. The reversal of 2949247477 is 7747429492.

It is a happy number.

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.

It is a de Polignac number, because none of the positive numbers 2^k-2949247477 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 (2949247471) 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, 134056693 + ... + 134056714.

It is an arithmetic number, because the mean of its divisors is an integer number (804340224).

Almost surely, 2^2949247477 is an apocalyptic number.

It is an amenable number.

2949247477 is a deficient number, since it is larger than the sum of its proper divisors (268113419).

2949247477 is a wasteful number, since it uses less digits than its factorization.

2949247477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268113418.

The product of its digits is 7112448, while the sum is 55.

The square root of 2949247477 is about 54306.9744784222. The cubic root of 2949247477 is about 1434.0701810728.

The spelling of 2949247477 in words is "two billion, nine hundred forty-nine million, two hundred forty-seven thousand, four hundred seventy-seven".