37899349 has 2 divisors, whose sum is σ = 37899350. Its totient is φ = 37899348.

The previous prime is 37899311. The next prime is 37899353. The reversal of 37899349 is 94399873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 15856324 = 4695^2 + 3982^2 .

It is an emirp because it is prime and its reverse (94399873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37899349 - 2⁷ = 37899221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 37899296 and 37899305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37899149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18949674 + 18949675.

It is an arithmetic number, because the mean of its divisors is an integer number (18949675).

Almost surely, 2^37899349 is an apocalyptic number.

It is an amenable number.

37899349 is a deficient number, since it is larger than the sum of its proper divisors (1).

37899349 is an equidigital number, since it uses as much as digits as its factorization.

37899349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The square root of 37899349 is about 6156.2447157338. The cubic root of 37899349 is about 335.9004482330.

The spelling of 37899349 in words is "thirty-seven million, eight hundred ninety-nine thousand, three hundred forty-nine".