7459981 has 16 divisors (see below), whose sum is σ = 8146944. Its totient is φ = 6812784.

The previous prime is 7459967. The next prime is 7459997. The reversal of 7459981 is 1899547.

7459981 = T₄₃₈ + T₄₃₉ + ... + T₅₀₄.

It is not a de Polignac number, because 7459981 - 2¹³ = 7451789 is a prime.

It is a super-2 number, since 2×7459981² = 111302633040722, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (90720) is a multiple of the sum of its prime divisors (240).

7459981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7459181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72376 + ... + 72478.

It is an arithmetic number, because the mean of its divisors is an integer number (509184).

Almost surely, 2^7459981 is an apocalyptic number.

It is an amenable number.

7459981 is a deficient number, since it is larger than the sum of its proper divisors (686963).

7459981 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (7459980) it forms an eRAP, since the sums of their prime factors are consecutive (239 and 240).

7459981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240.

The product of its digits is 90720, while the sum is 43.

The square root of 7459981 is about 2731.2965785502. The cubic root of 7459981 is about 195.3946074535.

The spelling of 7459981 in words is "seven million, four hundred fifty-nine thousand, nine hundred eighty-one".