920536749 has 12 divisors (see below), whose sum is σ = 1450542912. Its totient is φ = 557901000.

The previous prime is 920536739. The next prime is 920536777. The reversal of 920536749 is 947635029.

It is a happy number.

It is not a de Polignac number, because 920536749 - 2⁸ = 920536493 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920536739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4649077 + ... + 4649274.

It is an arithmetic number, because the mean of its divisors is an integer number (120878576).

Almost surely, 2^920536749 is an apocalyptic number.

920536749 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

920536749 is a deficient number, since it is larger than the sum of its proper divisors (530006163).

920536749 is a wasteful number, since it uses less digits than its factorization.

920536749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298368 (or 9298365 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 920536749 is about 30340.3485312875. The cubic root of 920536749 is about 972.7779329544. Note that the first 3 decimals are identical.

It can be divided in two parts, 9205 and 36749, that added together give a palindrome (45954).

The spelling of 920536749 in words is "nine hundred twenty million, five hundred thirty-six thousand, seven hundred forty-nine".