264290997 has 8 divisors (see below), whose sum is σ = 352704640. Its totient is φ = 176035680.

The previous prime is 264290989. The next prime is 264291017. The reversal of 264290997 is 799092462.

264290997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264290997 - 2³ = 264290989 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 (264290927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35629 + ... + 42402.

It is an arithmetic number, because the mean of its divisors is an integer number (44088080).

Almost surely, 2^264290997 is an apocalyptic number.

It is an amenable number.

264290997 is a deficient number, since it is larger than the sum of its proper divisors (88413643).

264290997 is a wasteful number, since it uses less digits than its factorization.

264290997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79163.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 264290997 is about 16257.0291566448. The cubic root of 264290997 is about 641.7424821944.

It can be divided in two parts, 2642 and 90997, that added together give a palindrome (93639).

The spelling of 264290997 in words is "two hundred sixty-four million, two hundred ninety thousand, nine hundred ninety-seven".