7407668 has 6 divisors (see below), whose sum is σ = 12963426. Its totient is φ = 3703832.

The previous prime is 7407661. The next prime is 7407671. The reversal of 7407668 is 8667047.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 289444 = 2668^2 + 538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7407661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925955 + ... + 925962.

It is an arithmetic number, because the mean of its divisors is an integer number (2160571).

Almost surely, 2^7407668 is an apocalyptic number.

It is an amenable number.

7407668 is a deficient number, since it is larger than the sum of its proper divisors (5555758).

7407668 is a wasteful number, since it uses less digits than its factorization.

7407668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851921 (or 1851919 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 7407668 is about 2721.7031432542. The cubic root of 7407668 is about 194.9368017861.

The spelling of 7407668 in words is "seven million, four hundred seven thousand, six hundred sixty-eight".