986661501 has 12 divisors (see below), whose sum is σ = 1530332352. Its totient is φ = 563806488.

The previous prime is 986661463. The next prime is 986661509. The reversal of 986661501 is 105166689.

It is a happy number.

It is not a de Polignac number, because 986661501 - 2⁶ = 986661437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986661509) 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, 3355845 + ... + 3356138.

It is an arithmetic number, because the mean of its divisors is an integer number (127527696).

Almost surely, 2^986661501 is an apocalyptic number.

It is an amenable number.

986661501 is a deficient number, since it is larger than the sum of its proper divisors (543670851).

986661501 is a wasteful number, since it uses less digits than its factorization.

986661501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712000 (or 6711993 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 986661501 is about 31411.1684118882. The cubic root of 986661501 is about 995.5339174668.

The spelling of 986661501 in words is "nine hundred eighty-six million, six hundred sixty-one thousand, five hundred one".