7139470 has 16 divisors (see below), whose sum is σ = 13839840. Its totient is φ = 2636064.

The previous prime is 7139449. The next prime is 7139513. The reversal of 7139470 is 749317.

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, 27330 + ... + 27589.

It is an arithmetic number, because the mean of its divisors is an integer number (864990).

Almost surely, 2^7139470 is an apocalyptic number.

7139470 is a deficient number, since it is larger than the sum of its proper divisors (6700370).

7139470 is a wasteful number, since it uses less digits than its factorization.

7139470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54939.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 7139470 is about 2671.9786675795. The cubic root of 7139470 is about 192.5552323661. Note that the first 3 decimals are identical.

The spelling of 7139470 in words is "seven million, one hundred thirty-nine thousand, four hundred seventy".