7641749 has 4 divisors (see below), whose sum is σ = 7738560. Its totient is φ = 7544940.

The previous prime is 7641737. The next prime is 7641791. The reversal of 7641749 is 9471467.

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 7641749 - 2⁸ = 7641493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7641709) 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, 48287 + ... + 48444.

It is an arithmetic number, because the mean of its divisors is an integer number (1934640).

Almost surely, 2^7641749 is an apocalyptic number.

7641749 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7641749 is a deficient number, since it is larger than the sum of its proper divisors (96811).

7641749 is an equidigital number, since it uses as much as digits as its factorization.

7641749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96810.

The product of its digits is 42336, while the sum is 38.

The square root of 7641749 is about 2764.3713571082. The cubic root of 7641749 is about 196.9688682801.

The spelling of 7641749 in words is "seven million, six hundred forty-one thousand, seven hundred forty-nine".