2477979 has 24 divisors (see below), whose sum is σ = 4272720. Its totient is φ = 1415232.

The previous prime is 2477957. The next prime is 2477983. The reversal of 2477979 is 9797742.

It is a happy number.

It is not a de Polignac number, because 2477979 - 2⁵ = 2477947 is a prime.

It is a super-2 number, since 2×2477979² = 12280759848882, which contains 22 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2477929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (178030).

2^2477979 is an apocalyptic number.

2477979 is a deficient number, since it is larger than the sum of its proper divisors (1794741).

2477979 is a wasteful number, since it uses less digits than its factorization.

2477979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896 (or 1883 counting only the distinct ones).

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

The square root of 2477979 is about 1574.1597758805. The cubic root of 2477979 is about 135.3212104348.

The spelling of 2477979 in words is "two million, four hundred seventy-seven thousand, nine hundred seventy-nine".