662429939 has 4 divisors (see below), whose sum is σ = 701396424. Its totient is φ = 623463456.

The previous prime is 662429909. The next prime is 662429941. The reversal of 662429939 is 939924266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939924266 = 2 ⋅469962133.

It is a cyclic number.

It is not a de Polignac number, because 662429939 - 2²⁰ = 661381363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662429909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19483217 + ... + 19483250.

It is an arithmetic number, because the mean of its divisors is an integer number (175349106).

Almost surely, 2^662429939 is an apocalyptic number.

662429939 is a deficient number, since it is larger than the sum of its proper divisors (38966485).

662429939 is a wasteful number, since it uses less digits than its factorization.

662429939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38966484.

The product of its digits is 1259712, while the sum is 50.

The square root of 662429939 is about 25737.7143313077. The cubic root of 662429939 is about 871.7259694128.

It can be divided in two parts, 6624 and 29939, that added together give a palindrome (36563).

The spelling of 662429939 in words is "six hundred sixty-two million, four hundred twenty-nine thousand, nine hundred thirty-nine".