1036739821 has 16 divisors (see below), whose sum is σ = 1162143360. Its totient is φ = 918267840.

The previous prime is 1036739813. The next prime is 1036739827. The reversal of 1036739821 is 1289376301.

It is a cyclic number.

It is not a de Polignac number, because 1036739821 - 2³ = 1036739813 is a prime.

It is a super-2 number, since 2×1036739821² = 2149658912894224082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036739827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53016 + ... + 69886.

It is an arithmetic number, because the mean of its divisors is an integer number (72633960).

Almost surely, 2^1036739821 is an apocalyptic number.

It is an amenable number.

1036739821 is a deficient number, since it is larger than the sum of its proper divisors (125403539).

1036739821 is a wasteful number, since it uses less digits than its factorization.

1036739821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17076.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1036739821 is about 32198.4443878893. Note that the first 3 decimals coincide. The cubic root of 1036739821 is about 1012.0996158326.

The spelling of 1036739821 in words is "one billion, thirty-six million, seven hundred thirty-nine thousand, eight hundred twenty-one".