7450981 has 8 divisors (see below), whose sum is σ = 7916184. Its totient is φ = 6988800.

The previous prime is 7450969. The next prime is 7450987. The reversal of 7450981 is 1890547.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6548481 + 902500 = 2559^2 + 950^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7450981 - 2⁷ = 7450853 is a prime.

It is a super-2 number, since 2×7450981² = 111034235724722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

7450981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7450987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6271 + ... + 7363.

It is an arithmetic number, because the mean of its divisors is an integer number (989523).

Almost surely, 2^7450981 is an apocalyptic number.

It is an amenable number.

7450981 is a deficient number, since it is larger than the sum of its proper divisors (465203).

7450981 is a wasteful number, since it uses less digits than its factorization.

7450981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 7450981 is about 2729.6485121715. The cubic root of 7450981 is about 195.3159987128.

The spelling of 7450981 in words is "seven million, four hundred fifty thousand, nine hundred eighty-one".