38977145 has 4 divisors (see below), whose sum is σ = 46772580. Its totient is φ = 31181712.

The previous prime is 38977139. The next prime is 38977223. The reversal of 38977145 is 54177983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28858384 + 10118761 = 5372^2 + 3181^2 .

It is a cyclic number.

It is not a de Polignac number, because 38977145 - 2¹² = 38973049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38977096 and 38977105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3897710 + ... + 3897719.

It is an arithmetic number, because the mean of its divisors is an integer number (11693145).

Almost surely, 2^38977145 is an apocalyptic number.

It is an amenable number.

38977145 is a deficient number, since it is larger than the sum of its proper divisors (7795435).

38977145 is an equidigital number, since it uses as much as digits as its factorization.

38977145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795434.

The product of its digits is 211680, while the sum is 44.

The square root of 38977145 is about 6243.1678657553. The cubic root of 38977145 is about 339.0548867949.

The spelling of 38977145 in words is "thirty-eight million, nine hundred seventy-seven thousand, one hundred forty-five".