2497669 has 4 divisors (see below), whose sum is σ = 2501100. Its totient is φ = 2494240.

The previous prime is 2497667. The next prime is 2497673. The reversal of 2497669 is 9667942.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 902500 + 1595169 = 950^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497669 - 2¹ = 2497667 is a prime.

It is a super-2 number, since 2×2497669² = 12476700867122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2 + 4³ + 9⁴ + 7² + 6⁷ + 6⁸ + 9⁶ .

It is a Duffinian number.

2497669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497661) 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, 142 + ... + 2239.

It is an arithmetic number, because the mean of its divisors is an integer number (625275).

2^2497669 is an apocalyptic number.

It is an amenable number.

2497669 is a deficient number, since it is larger than the sum of its proper divisors (3431).

2497669 is a wasteful number, since it uses less digits than its factorization.

2497669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430.

The product of its digits is 163296, while the sum is 43.

The square root of 2497669 is about 1580.4015312572. The cubic root of 2497669 is about 135.6786856630.

The spelling of 2497669 in words is "two million, four hundred ninety-seven thousand, six hundred sixty-nine".