6429965 has 4 divisors (see below), whose sum is σ = 7715964. Its totient is φ = 5143968.

The previous prime is 6429953. The next prime is 6429977. The reversal of 6429965 is 5699246.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6429953) and next prime (6429977).

It can be written as a sum of positive squares in 2 ways, for example, as 4919524 + 1510441 = 2218^2 + 1229^2 .

It is a cyclic number.

It is not a de Polignac number, because 6429965 - 2¹² = 6425869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642992 + ... + 643001.

It is an arithmetic number, because the mean of its divisors is an integer number (1928991).

Almost surely, 2^6429965 is an apocalyptic number.

It is an amenable number.

6429965 is a deficient number, since it is larger than the sum of its proper divisors (1285999).

6429965 is a wasteful number, since it uses less digits than its factorization.

6429965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285998.

The product of its digits is 116640, while the sum is 41.

The square root of 6429965 is about 2535.7375652855. The cubic root of 6429965 is about 185.9528631469.

The spelling of 6429965 in words is "six million, four hundred twenty-nine thousand, nine hundred sixty-five".