738285257 has 16 divisors (see below), whose sum is σ = 793044480. Its totient is φ = 685713600.

The previous prime is 738285253. The next prime is 738285263. The reversal of 738285257 is 752582837.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 738285257 - 2² = 738285253 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738285253) 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, 107507 + ... + 114167.

It is an arithmetic number, because the mean of its divisors is an integer number (49565280).

Almost surely, 2^738285257 is an apocalyptic number.

It is an amenable number.

738285257 is a deficient number, since it is larger than the sum of its proper divisors (54759223).

738285257 is a wasteful number, since it uses less digits than its factorization.

738285257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6824.

The product of its digits is 940800, while the sum is 47.

The square root of 738285257 is about 27171.4051348104. The cubic root of 738285257 is about 903.8049841849.

The spelling of 738285257 in words is "seven hundred thirty-eight million, two hundred eighty-five thousand, two hundred fifty-seven".