2947653 has 6 divisors (see below), whose sum is σ = 4257734. Its totient is φ = 1965096.

The previous prime is 2947649. The next prime is 2947661. The reversal of 2947653 is 3567492.

It can be written as a sum of positive squares in only one way, i.e., 2169729 + 777924 = 1473^2 + 882^2 .

It is not a de Polignac number, because 2947653 - 2² = 2947649 is a prime.

It is a Duffinian number.

2947653 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163750 + ... + 163767.

2^2947653 is an apocalyptic number.

It is an amenable number.

2947653 is a deficient number, since it is larger than the sum of its proper divisors (1310081).

2947653 is a wasteful number, since it uses less digits than its factorization.

2947653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327523 (or 327520 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 2947653 is about 1716.8730296676. The cubic root of 2947653 is about 143.3811696591.

It can be divided in two parts, 2947 and 653, that added together give a square (3600 = 60²).

The spelling of 2947653 in words is "two million, nine hundred forty-seven thousand, six hundred fifty-three".