98473621 has 4 divisors (see below), whose sum is σ = 98495244. Its totient is φ = 98452000.

The previous prime is 98473619. The next prime is 98473631. The reversal of 98473621 is 12637489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12637489 = 19 ⋅665131.

It can be written as a sum of positive squares in 2 ways, for example, as 53436100 + 45037521 = 7310^2 + 6711^2 .

It is a cyclic number.

It is not a de Polignac number, because 98473621 - 2¹ = 98473619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98473631) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030 + ... + 14071.

It is an arithmetic number, because the mean of its divisors is an integer number (24623811).

Almost surely, 2^98473621 is an apocalyptic number.

It is an amenable number.

98473621 is a deficient number, since it is larger than the sum of its proper divisors (21623).

98473621 is a wasteful number, since it uses less digits than its factorization.

98473621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21622.

The product of its digits is 72576, while the sum is 40.

The square root of 98473621 is about 9923.3875768308. The cubic root of 98473621 is about 461.7851568179.

The spelling of 98473621 in words is "ninety-eight million, four hundred seventy-three thousand, six hundred twenty-one".