6427388 has 12 divisors (see below), whose sum is σ = 12270552. Its totient is φ = 2921520.

The previous prime is 6427367. The next prime is 6427433. The reversal of 6427388 is 8837246.

It is a super-2 number, since 2×6427388² = 82622633005088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72995 + ... + 73082.

It is an arithmetic number, because the mean of its divisors is an integer number (1022546).

Almost surely, 2^6427388 is an apocalyptic number.

It is an amenable number.

6427388 is a deficient number, since it is larger than the sum of its proper divisors (5843164).

6427388 is a wasteful number, since it uses less digits than its factorization.

6427388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146092 (or 146090 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 6427388 is about 2535.2293781826. The cubic root of 6427388 is about 185.9280177779.

The spelling of 6427388 in words is "six million, four hundred twenty-seven thousand, three hundred eighty-eight".