69540899 has 2 divisors, whose sum is σ = 69540900. Its totient is φ = 69540898.

The previous prime is 69540883. The next prime is 69540901. The reversal of 69540899 is 99804596.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69540899 - 2⁴ = 69540883 is a prime.

Together with 69540901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69540839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34770449 + 34770450.

It is an arithmetic number, because the mean of its divisors is an integer number (34770450).

Almost surely, 2^69540899 is an apocalyptic number.

69540899 is a deficient number, since it is larger than the sum of its proper divisors (1).

69540899 is an equidigital number, since it uses as much as digits as its factorization.

69540899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 69540899 is about 8339.1185985091. The cubic root of 69540899 is about 411.2255595950.

The spelling of 69540899 in words is "sixty-nine million, five hundred forty thousand, eight hundred ninety-nine".