973990 has 16 divisors (see below), whose sum is σ = 1766448. Its totient is φ = 386656.

The previous prime is 973957. The next prime is 974003. The reversal of 973990 is 99379.

It is a happy number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449 + ... + 2011.

It is an arithmetic number, because the mean of its divisors is an integer number (110403).

2⁹⁷³⁹⁹⁰ is an apocalyptic number.

973990 is a deficient number, since it is larger than the sum of its proper divisors (792458).

973990 is a wasteful number, since it uses less digits than its factorization.

973990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 973990 is about 986.9093170094. The cubic root of 973990 is about 99.1253725708.

The spelling of 973990 in words is "nine hundred seventy-three thousand, nine hundred ninety".