38142977 has 2 divisors, whose sum is σ = 38142978. Its totient is φ = 38142976.

The previous prime is 38142971. The next prime is 38143003. The reversal of 38142977 is 77924183.

It is a Cunningham number, because it is equal to 6176²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38142976 + 1 = 6176^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 38142977 - 2⁴ = 38142961 is a prime.

It is not a weakly prime, because it can be changed into another prime (38142971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19071488 + 19071489.

It is an arithmetic number, because the mean of its divisors is an integer number (19071489).

Almost surely, 2^38142977 is an apocalyptic number.

It is an amenable number.

38142977 is a deficient number, since it is larger than the sum of its proper divisors (1).

38142977 is an equidigital number, since it uses as much as digits as its factorization.

38142977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 38142977 is about 6176.0000809585. Note that the first 4 decimals coincide. The cubic root of 38142977 is about 336.6186665983.

The spelling of 38142977 in words is "thirty-eight million, one hundred forty-two thousand, nine hundred seventy-seven".