99540037 has 2 divisors, whose sum is σ = 99540038. Its totient is φ = 99540036.

The previous prime is 99540029. The next prime is 99540059. The reversal of 99540037 is 73004599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98386561 + 1153476 = 9919^2 + 1074^2 .

It is a cyclic number.

It is not a de Polignac number, because 99540037 - 2³ = 99540029 is a prime.

It is a super-2 number, since 2×99540037² = 19816437931922738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99539978 and 99540005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99540017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49770018 + 49770019.

It is an arithmetic number, because the mean of its divisors is an integer number (49770019).

Almost surely, 2^99540037 is an apocalyptic number.

It is an amenable number.

99540037 is a deficient number, since it is larger than the sum of its proper divisors (1).

99540037 is an equidigital number, since it uses as much as digits as its factorization.

99540037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 99540037 is about 9976.9753432591. The cubic root of 99540037 is about 463.4461364094.

The spelling of 99540037 in words is "ninety-nine million, five hundred forty thousand, thirty-seven".