6437992 has 32 divisors (see below), whose sum is σ = 13284000. Its totient is φ = 2900800.

The previous prime is 6437983. The next prime is 6438007. The reversal of 6437992 is 2997346.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁴ + 4 + 3¹³ + 7³ + 9⁵ + 9⁷ + 2³ .

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, 12867 + ... + 13357.

It is an arithmetic number, because the mean of its divisors is an integer number (415125).

Almost surely, 2^6437992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6437992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6642000).

6437992 is an abundant number, since it is smaller than the sum of its proper divisors (6846008).

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

6437992 is a wasteful number, since it uses less digits than its factorization.

6437992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 6437992 is about 2537.3198458216. The cubic root of 6437992 is about 186.0302105320.

The spelling of 6437992 in words is "six million, four hundred thirty-seven thousand, nine hundred ninety-two".