5921388 has 72 divisors (see below), whose sum is σ = 17209920. Its totient is φ = 1697760.

The previous prime is 5921371. The next prime is 5921411. The reversal of 5921388 is 8831295.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7131 + ... + 7917.

Almost surely, 2^5921388 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 5921388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8604960).

5921388 is an abundant number, since it is smaller than the sum of its proper divisors (11288532).

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

5921388 is a wasteful number, since it uses less digits than its factorization.

5921388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 822 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 5921388 is about 2433.3902276454. The cubic root of 5921388 is about 180.9149707960.

The spelling of 5921388 in words is "five million, nine hundred twenty-one thousand, three hundred eighty-eight".