37998545 has 8 divisors (see below), whose sum is σ = 49105896. Its totient is φ = 28060416.

The previous prime is 37998533. The next prime is 37998551. The reversal of 37998545 is 54589973.

It can be written as a sum of positive squares in 4 ways, for example, as 2202256 + 35796289 = 1484^2 + 5983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 37998545 - 2¹⁰ = 37997521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 37998493 and 37998502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292232 + ... + 292361.

It is an arithmetic number, because the mean of its divisors is an integer number (6138237).

Almost surely, 2^37998545 is an apocalyptic number.

It is an amenable number.

37998545 is a deficient number, since it is larger than the sum of its proper divisors (11107351).

37998545 is a wasteful number, since it uses less digits than its factorization.

37998545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584611.

The product of its digits is 1360800, while the sum is 50.

The square root of 37998545 is about 6164.2959857554. The cubic root of 37998545 is about 336.1932496828.

The spelling of 37998545 in words is "thirty-seven million, nine hundred ninety-eight thousand, five hundred forty-five".