3427992 has 48 divisors (see below), whose sum is σ = 9491040. Its totient is φ = 1117248.

The previous prime is 3427981. The next prime is 3428021. The reversal of 3427992 is 2997243.

It is a super-2 number, since 2×3427992² = 23502258304128, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2878 + ... + 3890.

It is an arithmetic number, because the mean of its divisors is an integer number (197730).

Almost surely, 2^3427992 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 3427992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4745520).

3427992 is an abundant number, since it is smaller than the sum of its proper divisors (6063048).

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

3427992 is a wasteful number, since it uses less digits than its factorization.

3427992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1065 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 3427992 is about 1851.4837293371. The cubic root of 3427992 is about 150.7809932728.

The spelling of 3427992 in words is "three million, four hundred twenty-seven thousand, nine hundred ninety-two".