7481961 has 6 divisors (see below), whose sum is σ = 10807290. Its totient is φ = 4987968.

The previous prime is 7481939. The next prime is 7481983. The reversal of 7481961 is 1691847.

It is an interprime number because it is at equal distance from previous prime (7481939) and next prime (7481983).

It can be written as a sum of positive squares in only one way, i.e., 6471936 + 1010025 = 2544^2 + 1005^2 .

It is not a de Polignac number, because 7481961 - 2¹⁰ = 7480937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7481911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415656 + ... + 415673.

It is an arithmetic number, because the mean of its divisors is an integer number (1801215).

Almost surely, 2^7481961 is an apocalyptic number.

It is an amenable number.

7481961 is a deficient number, since it is larger than the sum of its proper divisors (3325329).

7481961 is a wasteful number, since it uses less digits than its factorization.

7481961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831335 (or 831332 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 7481961 is about 2735.3173490475. The cubic root of 7481961 is about 195.5863220767.

The spelling of 7481961 in words is "seven million, four hundred eighty-one thousand, nine hundred sixty-one".