934639 has 2 divisors, whose sum is σ = 934640. Its totient is φ = 934638.

The previous prime is 934613. The next prime is 934669. The reversal of 934639 is 936439.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 934639 - 2⁵ = 934607 is a prime.

934639 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (934669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467319 + 467320.

It is an arithmetic number, because the mean of its divisors is an integer number (467320).

2⁹³⁴⁶³⁹ is an apocalyptic number.

934639 is a deficient number, since it is larger than the sum of its proper divisors (1).

934639 is an equidigital number, since it uses as much as digits as its factorization.

934639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 34.

The square root of 934639 is about 966.7672936131. The cubic root of 934639 is about 97.7720301469.

The spelling of 934639 in words is "nine hundred thirty-four thousand, six hundred thirty-nine".