2506969 has 4 divisors (see below), whose sum is σ = 2549520. Its totient is φ = 2464420.

The previous prime is 2506961. The next prime is 2506979. The reversal of 2506969 is 9696052.

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 cyclic number.

It is not a de Polignac number, because 2506969 - 2³ = 2506961 is a prime.

It is a super-2 number, since 2×2506969² = 12569787133922, which contains 22 as substring.

It is a Duffinian number.

2506969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2506961) 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, 21187 + ... + 21304.

It is an arithmetic number, because the mean of its divisors is an integer number (637380).

2^2506969 is an apocalyptic number.

It is an amenable number.

2506969 is a deficient number, since it is larger than the sum of its proper divisors (42551).

2506969 is an equidigital number, since it uses as much as digits as its factorization.

2506969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42550.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 2506969 is about 1583.3410877003. The cubic root of 2506969 is about 135.8468756702.

The spelling of 2506969 in words is "two million, five hundred six thousand, nine hundred sixty-nine".