2439747 has 16 divisors (see below), whose sum is σ = 3652000. Its totient is φ = 1609632.

The previous prime is 2439739. The next prime is 2439781. The reversal of 2439747 is 7479342.

It is not a de Polignac number, because 2439747 - 2³ = 2439739 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2439737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529 + ... + 3357.

It is an arithmetic number, because the mean of its divisors is an integer number (228250).

2^2439747 is an apocalyptic number.

2439747 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2439747 is a deficient number, since it is larger than the sum of its proper divisors (1212253).

2439747 is a wasteful number, since it uses less digits than its factorization.

2439747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 941 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 2439747 is about 1561.9689497554. The cubic root of 2439747 is about 134.6216567167.

It can be divided in two parts, 243 and 9747, that multiplied together give a square (2368521 = 1539²).

The spelling of 2439747 in words is "two million, four hundred thirty-nine thousand, seven hundred forty-seven".