253704047 has 4 divisors (see below), whose sum is σ = 254457216. Its totient is φ = 252950880.

The previous prime is 253704029. The next prime is 253704049. The reversal of 253704047 is 740407352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253704047 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 (253704049) 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, 376079 + ... + 376752.

It is an arithmetic number, because the mean of its divisors is an integer number (63614304).

Almost surely, 2^253704047 is an apocalyptic number.

253704047 is a deficient number, since it is larger than the sum of its proper divisors (753169).

253704047 is an equidigital number, since it uses as much as digits as its factorization.

253704047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753168.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 253704047 is about 15928.0898729258. The cubic root of 253704047 is about 633.0564893138.

The spelling of 253704047 in words is "two hundred fifty-three million, seven hundred four thousand, forty-seven".