662391093 has 16 divisors (see below), whose sum is σ = 1087001216. Its totient is φ = 349392960.

The previous prime is 662391083. The next prime is 662391101. The reversal of 662391093 is 390193266.

It is not a de Polignac number, because 662391093 - 2¹³ = 662382901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662391083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212898 + ... + 1213443.

It is an arithmetic number, because the mean of its divisors is an integer number (67937576).

Almost surely, 2^662391093 is an apocalyptic number.

It is an amenable number.

662391093 is a deficient number, since it is larger than the sum of its proper divisors (424610123).

662391093 is a wasteful number, since it uses less digits than its factorization.

662391093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426364.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 662391093 is about 25736.9596689275. The cubic root of 662391093 is about 871.7089292566.

The spelling of 662391093 in words is "six hundred sixty-two million, three hundred ninety-one thousand, ninety-three".