7649251 has 2 divisors, whose sum is σ = 7649252. Its totient is φ = 7649250.

The previous prime is 7649249. The next prime is 7649261. The reversal of 7649251 is 1529467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7649251 - 2¹ = 7649249 is a prime.

It is a super-2 number, since 2×7649251² = 117022081722002, which contains 22 as substring.

Together with 7649249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7649231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3824625 + 3824626.

It is an arithmetic number, because the mean of its divisors is an integer number (3824626).

Almost surely, 2^7649251 is an apocalyptic number.

7649251 is a deficient number, since it is larger than the sum of its proper divisors (1).

7649251 is an equidigital number, since it uses as much as digits as its factorization.

7649251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 7649251 is about 2765.7279331127. The cubic root of 7649251 is about 197.0333027949.

The spelling of 7649251 in words is "seven million, six hundred forty-nine thousand, two hundred fifty-one".