7450991 has 4 divisors (see below), whose sum is σ = 7534800. Its totient is φ = 7367184.

The previous prime is 7450987. The next prime is 7451009. The reversal of 7450991 is 1990547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7450991 - 2² = 7450987 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 (7450901) 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, 41771 + ... + 41948.

It is an arithmetic number, because the mean of its divisors is an integer number (1883700).

Almost surely, 2^7450991 is an apocalyptic number.

7450991 is a deficient number, since it is larger than the sum of its proper divisors (83809).

7450991 is an equidigital number, since it uses as much as digits as its factorization.

7450991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83808.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 7450991 is about 2729.6503439085. The cubic root of 7450991 is about 195.3160860910.

The spelling of 7450991 in words is "seven million, four hundred fifty thousand, nine hundred ninety-one".