7290978 has 16 divisors (see below), whose sum is σ = 14619360. Its totient is φ = 2424096.

The previous prime is 7290971. The next prime is 7290979. The reversal of 7290978 is 8790927.

It is not an unprimeable number, because it can be changed into a prime (7290971) 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, 1413 + ... + 4071.

It is an arithmetic number, because the mean of its divisors is an integer number (913710).

Almost surely, 2^7290978 is an apocalyptic number.

7290978 is an abundant number, since it is smaller than the sum of its proper divisors (7328382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7290978 is a wasteful number, since it uses less digits than its factorization.

7290978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 7290978 is about 2700.1811050372. The cubic root of 7290978 is about 193.9077926498.

The spelling of 7290978 in words is "seven million, two hundred ninety thousand, nine hundred seventy-eight".