7261649 has 4 divisors (see below), whose sum is σ = 7271664. Its totient is φ = 7251636.

The previous prime is 7261637. The next prime is 7261651. The reversal of 7261649 is 9461627.

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 7261649 - 2¹² = 7257553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7261679) 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, 3827 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (1817916).

Almost surely, 2^7261649 is an apocalyptic number.

It is an amenable number.

7261649 is a deficient number, since it is larger than the sum of its proper divisors (10015).

7261649 is an equidigital number, since it uses as much as digits as its factorization.

7261649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10014.

The product of its digits is 18144, while the sum is 35.

The square root of 7261649 is about 2694.7447003380. The cubic root of 7261649 is about 193.6474359692.

The spelling of 7261649 in words is "seven million, two hundred sixty-one thousand, six hundred forty-nine".