99401437 has 2 divisors, whose sum is σ = 99401438. Its totient is φ = 99401436.

The previous prime is 99401413. The next prime is 99401443. The reversal of 99401437 is 73410499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90839961 + 8561476 = 9531^2 + 2926^2 .

It is an emirp because it is prime and its reverse (73410499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99401437 is a prime.

It is a Chen prime.

It is equal to p_5728915 and since 99401437 and 5728915 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 99401396 and 99401405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99402437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49700718 + 49700719.

It is an arithmetic number, because the mean of its divisors is an integer number (49700719).

Almost surely, 2^99401437 is an apocalyptic number.

It is an amenable number.

99401437 is a deficient number, since it is larger than the sum of its proper divisors (1).

99401437 is an equidigital number, since it uses as much as digits as its factorization.

99401437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 99401437 is about 9970.0269307560. The cubic root of 99401437 is about 463.2309349937.

The spelling of 99401437 in words is "ninety-nine million, four hundred one thousand, four hundred thirty-seven".