2639007 has 16 divisors (see below), whose sum is σ = 4468480. Its totient is φ = 1507896.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2639007 is 7009362.

It is an interprime number because it is at equal distance from previous prime (2638973) and next prime (2639041).

It is not a de Polignac number, because 2639007 - 2⁷ = 2638879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

2639007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639107) 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, 6793 + ... + 7170.

It is an arithmetic number, because the mean of its divisors is an integer number (279280).

2^2639007 is an apocalyptic number.

2639007 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2639007 is a deficient number, since it is larger than the sum of its proper divisors (1829473).

2639007 is a wasteful number, since it uses less digits than its factorization.

2639007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979 (or 13973 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 2639007 is about 1624.5020775610. The cubic root of 2639007 is about 138.1911340174.

The spelling of 2639007 in words is "two million, six hundred thirty-nine thousand, seven".