96399621 has 6 divisors (see below), whose sum is σ = 139243910. Its totient is φ = 64266408.

The previous prime is 96399619. The next prime is 96399643. The reversal of 96399621 is 12699369.

It is a happy number.

96399621 is a `hidden beast` number, since 9 + 639 + 9 + 6 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 82628100 + 13771521 = 9090^2 + 3711^2 .

It is not a de Polignac number, because 96399621 - 2¹ = 96399619 is a prime.

It is a super-3 number, since 3×96399621³ (a number of 25 digits) contains 333 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 (96399661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5355526 + ... + 5355543.

Almost surely, 2^96399621 is an apocalyptic number.

It is an amenable number.

96399621 is a deficient number, since it is larger than the sum of its proper divisors (42844289).

96399621 is a wasteful number, since it uses less digits than its factorization.

96399621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711075 (or 10711072 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 96399621 is about 9818.3308662929. The cubic root of 96399621 is about 458.5201672524.

It can be divided in two parts, 96399 and 621, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 96399621 in words is "ninety-six million, three hundred ninety-nine thousand, six hundred twenty-one".