99470557 has 8 divisors (see below), whose sum is σ = 100665432. Its totient is φ = 98280000.

The previous prime is 99470549. The next prime is 99470597. The reversal of 99470557 is 75507499.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13147876 + 86322681 = 3626^2 + 9291^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99470557 - 2³ = 99470549 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 (99470507) 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, 75807 + ... + 77107.

It is an arithmetic number, because the mean of its divisors is an integer number (12583179).

Almost surely, 2^99470557 is an apocalyptic number.

It is an amenable number.

99470557 is a deficient number, since it is larger than the sum of its proper divisors (1194875).

99470557 is a wasteful number, since it uses less digits than its factorization.

99470557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 99470557 is about 9973.4927182006. The cubic root of 99470557 is about 463.3382812070.

The spelling of 99470557 in words is "ninety-nine million, four hundred seventy thousand, five hundred fifty-seven".