734991 has 4 divisors (see below), whose sum is σ = 979992. Its totient is φ = 489992.

The previous prime is 734971. The next prime is 735001. The reversal of 734991 is 199437.

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 734991 - 2⁵ = 734959 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 734991.

It is not an unprimeable number, because it can be changed into a prime (734911) 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, 122496 + ... + 122501.

It is an arithmetic number, because the mean of its divisors is an integer number (244998).

2⁷³⁴⁹⁹¹ is an apocalyptic number.

734991 is a deficient number, since it is larger than the sum of its proper divisors (245001).

734991 is a wasteful number, since it uses less digits than its factorization.

734991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245000.

The product of its digits is 6804, while the sum is 33.

The square root of 734991 is about 857.3161610515. The cubic root of 734991 is about 90.2458709038.

The spelling of 734991 in words is "seven hundred thirty-four thousand, nine hundred ninety-one".