349008637 has 2 divisors, whose sum is σ = 349008638. Its totient is φ = 349008636.

The previous prime is 349008607. The next prime is 349008677. The reversal of 349008637 is 736800943.

It is an a-pointer prime, because the next prime (349008677) can be obtained adding 349008637 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307160676 + 41847961 = 17526^2 + 6469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349008637 is a prime.

It is equal to p_18752872 and since 349008637 and 18752872 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349008637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349008607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174504318 + 174504319.

It is an arithmetic number, because the mean of its divisors is an integer number (174504319).

Almost surely, 2^349008637 is an apocalyptic number.

It is an amenable number.

349008637 is a deficient number, since it is larger than the sum of its proper divisors (1).

349008637 is an equidigital number, since it uses as much as digits as its factorization.

349008637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 349008637 is about 18681.7728548444. The cubic root of 349008637 is about 704.0638695981.

The spelling of 349008637 in words is "three hundred forty-nine million, eight thousand, six hundred thirty-seven".