986667621 has 8 divisors (see below), whose sum is σ = 1315719360. Its totient is φ = 657697152.

The previous prime is 986667601. The next prime is 986667653. The reversal of 986667621 is 126766689.

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

It is not a de Polignac number, because 986667621 - 2¹⁵ = 986634853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986667601) 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, 18741 + ... + 48213.

It is an arithmetic number, because the mean of its divisors is an integer number (164464920).

Almost surely, 2^986667621 is an apocalyptic number.

It is an amenable number.

986667621 is a deficient number, since it is larger than the sum of its proper divisors (329051739).

986667621 is a wasteful number, since it uses less digits than its factorization.

986667621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40635.

The product of its digits is 1306368, while the sum is 51.

The square root of 986667621 is about 31411.2658293167. The cubic root of 986667621 is about 995.5359758070.

The spelling of 986667621 in words is "nine hundred eighty-six million, six hundred sixty-seven thousand, six hundred twenty-one".