234651997 has 4 divisors (see below), whose sum is σ = 235481440. Its totient is φ = 233822556.

The previous prime is 234651983. The next prime is 234652063. The reversal of 234651997 is 799156432.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234651997 - 2⁷ = 234651869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234651397) 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, 414297 + ... + 414862.

It is an arithmetic number, because the mean of its divisors is an integer number (58870360).

Almost surely, 2^234651997 is an apocalyptic number.

It is an amenable number.

234651997 is a deficient number, since it is larger than the sum of its proper divisors (829443).

234651997 is an equidigital number, since it uses as much as digits as its factorization.

234651997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829442.

The product of its digits is 408240, while the sum is 46.

The square root of 234651997 is about 15318.3549051457. The cubic root of 234651997 is about 616.7958148142.

The spelling of 234651997 in words is "two hundred thirty-four million, six hundred fifty-one thousand, nine hundred ninety-seven".