429651979 has 4 divisors (see below), whose sum is σ = 429715800. Its totient is φ = 429588160.

The previous prime is 429651941. The next prime is 429652019. The reversal of 429651979 is 979156924.

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

It is a cyclic number.

It is not a de Polignac number, because 429651979 - 2¹¹ = 429649931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429651379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20437 + ... + 35734.

It is an arithmetic number, because the mean of its divisors is an integer number (107428950).

Almost surely, 2^429651979 is an apocalyptic number.

429651979 is a deficient number, since it is larger than the sum of its proper divisors (63821).

429651979 is an equidigital number, since it uses as much as digits as its factorization.

429651979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63820.

The product of its digits is 1224720, while the sum is 52.

The square root of 429651979 is about 20728.0481232556. The cubic root of 429651979 is about 754.5805479699.

It can be divided in two parts, 42965 and 1979, that added together give a palindrome (44944).

The spelling of 429651979 in words is "four hundred twenty-nine million, six hundred fifty-one thousand, nine hundred seventy-nine".