38703661 has 6 divisors (see below), whose sum is σ = 40085162. Its totient is φ = 37368240.

The previous prime is 38703653. The next prime is 38703677. The reversal of 38703661 is 16630783.

It can be written as a sum of positive squares in 3 ways, for example, as 17589636 + 21114025 = 4194^2 + 4595^2 .

It is not a de Polignac number, because 38703661 - 2³ = 38703653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38703761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22170 + ... + 23851.

Almost surely, 2^38703661 is an apocalyptic number.

It is an amenable number.

38703661 is a deficient number, since it is larger than the sum of its proper divisors (1381501).

38703661 is an equidigital number, since it uses as much as digits as its factorization.

38703661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46079 (or 46050 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 38703661 is about 6221.2266475350. The cubic root of 38703661 is about 338.2600294705.

The spelling of 38703661 in words is "thirty-eight million, seven hundred three thousand, six hundred sixty-one".