7249831 has 2 divisors, whose sum is σ = 7249832. Its totient is φ = 7249830.

The previous prime is 7249829. The next prime is 7249841. The reversal of 7249831 is 1389427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7249831 - 2¹ = 7249829 is a prime.

It is a super-2 number, since 2×7249831² = 105120099057122, which contains 22 as substring.

Together with 7249829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7249841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3624915 + 3624916.

It is an arithmetic number, because the mean of its divisors is an integer number (3624916).

Almost surely, 2^7249831 is an apocalyptic number.

7249831 is a deficient number, since it is larger than the sum of its proper divisors (1).

7249831 is an equidigital number, since it uses as much as digits as its factorization.

7249831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 7249831 is about 2692.5510208722. The cubic root of 7249831 is about 193.5423281619.

The spelling of 7249831 in words is "seven million, two hundred forty-nine thousand, eight hundred thirty-one".