99960451 has 2 divisors, whose sum is σ = 99960452. Its totient is φ = 99960450.

The previous prime is 99960437. The next prime is 99960529. The reversal of 99960451 is 15406999.

It is a weak prime.

It is an emirp because it is prime and its reverse (15406999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99960451 - 2⁹ = 99959939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99960398 and 99960407.

It is not a weakly prime, because it can be changed into another prime (99960551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49980225 + 49980226.

It is an arithmetic number, because the mean of its divisors is an integer number (49980226).

Almost surely, 2^99960451 is an apocalyptic number.

99960451 is a deficient number, since it is larger than the sum of its proper divisors (1).

99960451 is an equidigital number, since it uses as much as digits as its factorization.

99960451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 99960451 is about 9998.0223544459. The cubic root of 99960451 is about 464.0976852272.

The spelling of 99960451 in words is "ninety-nine million, nine hundred sixty thousand, four hundred fifty-one".