234896781 has 16 divisors (see below), whose sum is σ = 370281600. Its totient is φ = 129597888.

The previous prime is 234896773. The next prime is 234896789. The reversal of 234896781 is 187698432.

It is an interprime number because it is at equal distance from previous prime (234896773) and next prime (234896789).

It is not a de Polignac number, because 234896781 - 2³ = 234896773 is a prime.

It is a super-2 number, since 2×234896781² = 110352995448323922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 234896781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234896789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192246 + ... + 193463.

It is an arithmetic number, because the mean of its divisors is an integer number (23142600).

Almost surely, 2^234896781 is an apocalyptic number.

234896781 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

234896781 is a deficient number, since it is larger than the sum of its proper divisors (135384819).

234896781 is a wasteful number, since it uses less digits than its factorization.

234896781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385748.

The product of its digits is 580608, while the sum is 48.

The square root of 234896781 is about 15326.3427144247. The cubic root of 234896781 is about 617.0102163943.

The spelling of 234896781 in words is "two hundred thirty-four million, eight hundred ninety-six thousand, seven hundred eighty-one".