1102644487 has 32 divisors (see below), whose sum is σ = 1347600384. Its totient is φ = 882316800.

The previous prime is 1102644469. The next prime is 1102644503. The reversal of 1102644487 is 7844462011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1102644487 - 2⁷ = 1102644359 is a prime.

It is a super-2 number, since 2×1102644487² = 2431649729422986338, 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 (1102644457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743787 + ... + 745267.

It is an arithmetic number, because the mean of its divisors is an integer number (42112512).

Almost surely, 2^1102644487 is an apocalyptic number.

1102644487 is a deficient number, since it is larger than the sum of its proper divisors (244955897).

1102644487 is a wasteful number, since it uses less digits than its factorization.

1102644487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 1102644487 is about 33206.0911129269. The cubic root of 1102644487 is about 1033.1066811139.

The spelling of 1102644487 in words is "one billion, one hundred two million, six hundred forty-four thousand, four hundred eighty-seven".