7392989 has 4 divisors (see below), whose sum is σ = 7398780. Its totient is φ = 7387200.

The previous prime is 7392967. The next prime is 7392991. The reversal of 7392989 is 9892937.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9892937 = 31 ⋅319127.

It can be written as a sum of positive squares in 2 ways, for example, as 2748964 + 4644025 = 1658^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 7392989 - 2¹² = 7388893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7392949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 3845.

It is an arithmetic number, because the mean of its divisors is an integer number (1849695).

Almost surely, 2^7392989 is an apocalyptic number.

It is an amenable number.

7392989 is a deficient number, since it is larger than the sum of its proper divisors (5791).

7392989 is a wasteful number, since it uses less digits than its factorization.

7392989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790.

The product of its digits is 244944, while the sum is 47.

The square root of 7392989 is about 2719.0051489469. The cubic root of 7392989 is about 194.8079546918.

The spelling of 7392989 in words is "seven million, three hundred ninety-two thousand, nine hundred eighty-nine".