893620645 has 16 divisors (see below), whose sum is σ = 1110276720. Its totient is φ = 689651200.

The previous prime is 893620643. The next prime is 893620661. The reversal of 893620645 is 546026398.

It can be written as a sum of positive squares in 8 ways, for example, as 73256481 + 820364164 = 8559^2 + 28642^2 .

It is not a de Polignac number, because 893620645 - 2¹ = 893620643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (893620643) 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, 247755 + ... + 251335.

It is an arithmetic number, because the mean of its divisors is an integer number (69392295).

Almost surely, 2^893620645 is an apocalyptic number.

It is an amenable number.

893620645 is a deficient number, since it is larger than the sum of its proper divisors (216656075).

893620645 is a wasteful number, since it uses less digits than its factorization.

893620645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 893620645 is about 29893.4883377635. The cubic root of 893620645 is about 963.2027884574.

The spelling of 893620645 in words is "eight hundred ninety-three million, six hundred twenty thousand, six hundred forty-five".