2609958 has 16 divisors (see below), whose sum is σ = 5621616. Its totient is φ = 803040.

The previous prime is 2609953. The next prime is 2609963. The reversal of 2609958 is 8599062.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2609953) and next prime (2609963).

It is a super-3 number, since 3×2609958³ = 53336168067636137736, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16653 + ... + 16808.

It is an arithmetic number, because the mean of its divisors is an integer number (351351).

2^2609958 is an apocalyptic number.

2609958 is an abundant number, since it is smaller than the sum of its proper divisors (3011658).

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

2609958 is a wasteful number, since it uses less digits than its factorization.

2609958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33479.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 2609958 is about 1615.5364434144. The cubic root of 2609958 is about 137.6822135224.

It can be divided in two parts, 260995 and 8, that added together give a triangular number (261003 = T₇₂₂).

The spelling of 2609958 in words is "two million, six hundred nine thousand, nine hundred fifty-eight".