2979747 has 10 divisors (see below), whose sum is σ = 4451348. Its totient is φ = 1986444.

The previous prime is 2979737. The next prime is 2979749. The reversal of 2979747 is 7479792.

It is a happy number.

It is not a de Polignac number, because 2979747 - 2⁴ = 2979731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979749) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18313 + ... + 18474.

2^2979747 is an apocalyptic number.

2979747 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2979747 is a deficient number, since it is larger than the sum of its proper divisors (1471601).

2979747 is an equidigital number, since it uses as much as digits as its factorization.

2979747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36799 (or 36790 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 2979747 is about 1726.1943691253. The cubic root of 2979747 is about 143.8996696956.

Adding to 2979747 its sum of digits (45), we get a palindrome (2979792).

The spelling of 2979747 in words is "two million, nine hundred seventy-nine thousand, seven hundred forty-seven".