7491961 has 4 divisors (see below), whose sum is σ = 7546000. Its totient is φ = 7437924.

The previous prime is 7491949. The next prime is 7491973. The reversal of 7491961 is 1691947.

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 an interprime number because it is at equal distance from previous prime (7491949) and next prime (7491973).

It is a cyclic number.

It is not a de Polignac number, because 7491961 - 2⁵ = 7491929 is a prime.

It is a super-2 number, since 2×7491961² = 112258959251042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7491961.

It is not an unprimeable number, because it can be changed into a prime (7491901) 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, 26811 + ... + 27088.

It is an arithmetic number, because the mean of its divisors is an integer number (1886500).

Almost surely, 2^7491961 is an apocalyptic number.

It is an amenable number.

7491961 is a deficient number, since it is larger than the sum of its proper divisors (54039).

7491961 is a wasteful number, since it uses less digits than its factorization.

7491961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54038.

The product of its digits is 13608, while the sum is 37.

The square root of 7491961 is about 2737.1446801366. The cubic root of 7491961 is about 195.6734201204.

The spelling of 7491961 in words is "seven million, four hundred ninety-one thousand, nine hundred sixty-one".