429656991 has 4 divisors (see below), whose sum is σ = 572875992. Its totient is φ = 286437992.

The previous prime is 429656971. The next prime is 429657001. The reversal of 429656991 is 199656924.

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 429656991 - 2⁵ = 429656959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429656911) 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, 71609496 + ... + 71609501.

It is an arithmetic number, because the mean of its divisors is an integer number (143218998).

Almost surely, 2^429656991 is an apocalyptic number.

429656991 is a deficient number, since it is larger than the sum of its proper divisors (143219001).

429656991 is a wasteful number, since it uses less digits than its factorization.

429656991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143219000.

The product of its digits is 1049760, while the sum is 51.

The square root of 429656991 is about 20728.1690218890. The cubic root of 429656991 is about 754.5834820834.

The spelling of 429656991 in words is "four hundred twenty-nine million, six hundred fifty-six thousand, nine hundred ninety-one".