1087633749 has 8 divisors (see below), whose sum is σ = 1450742112. Its totient is φ = 724807280.

The previous prime is 1087633727. The next prime is 1087633793. The reversal of 1087633749 is 9473367801.

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

It is a cyclic number.

It is not a de Polignac number, because 1087633749 - 2⁹ = 1087633237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1087633698 and 1087633707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087633649) 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, 61299 + ... + 77024.

It is an arithmetic number, because the mean of its divisors is an integer number (181342764).

Almost surely, 2^1087633749 is an apocalyptic number.

It is an amenable number.

1087633749 is a deficient number, since it is larger than the sum of its proper divisors (363108363).

1087633749 is a wasteful number, since it uses less digits than its factorization.

1087633749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140947.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 1087633749 is about 32979.2927304392. The cubic root of 1087633749 is about 1028.3972146769.

The spelling of 1087633749 in words is "one billion, eighty-seven million, six hundred thirty-three thousand, seven hundred forty-nine".