99477641 has 4 divisors (see below), whose sum is σ = 101108484. Its totient is φ = 97846800.

The previous prime is 99477617. The next prime is 99477643. The reversal of 99477641 is 14677499.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6760000 + 92717641 = 2600^2 + 9629^2 .

It is a cyclic number.

It is not a de Polignac number, because 99477641 - 2⁶ = 99477577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99477643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815330 + ... + 815451.

It is an arithmetic number, because the mean of its divisors is an integer number (25277121).

Almost surely, 2^99477641 is an apocalyptic number.

It is an amenable number.

99477641 is a deficient number, since it is larger than the sum of its proper divisors (1630843).

99477641 is a wasteful number, since it uses less digits than its factorization.

99477641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630842.

The product of its digits is 381024, while the sum is 47.

The square root of 99477641 is about 9973.8478532610. The cubic root of 99477641 is about 463.3492801417.

The spelling of 99477641 in words is "ninety-nine million, four hundred seventy-seven thousand, six hundred forty-one".