434972691 has 6 divisors (see below), whose sum is σ = 628293900. Its totient is φ = 289981788.

The previous prime is 434972669. The next prime is 434972723. The reversal of 434972691 is 196279434.

It is a happy number.

It is not a de Polignac number, because 434972691 - 2²⁶ = 367863827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434972611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24165141 + ... + 24165158.

It is an arithmetic number, because the mean of its divisors is an integer number (104715650).

Almost surely, 2^434972691 is an apocalyptic number.

434972691 is a deficient number, since it is larger than the sum of its proper divisors (193321209).

434972691 is a wasteful number, since it uses less digits than its factorization.

434972691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48330305 (or 48330302 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 434972691 is about 20855.9989211737. The cubic root of 434972691 is about 757.6826289062.

Adding to 434972691 its sum of digits (45), we get a square (434972736 = 20856²).

The spelling of 434972691 in words is "four hundred thirty-four million, nine hundred seventy-two thousand, six hundred ninety-one".