38979953 has 4 divisors (see below), whose sum is σ = 39418020. Its totient is φ = 38541888.

The previous prime is 38979947. The next prime is 38979977. The reversal of 38979953 is 35997983.

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 5721664 + 33258289 = 2392^2 + 5767^2 .

It is a cyclic number.

It is not a de Polignac number, because 38979953 - 2⁴ = 38979937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38979895 and 38979904.

It is not an unprimeable number, because it can be changed into a prime (38979053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218900 + ... + 219077.

It is an arithmetic number, because the mean of its divisors is an integer number (9854505).

Almost surely, 2^38979953 is an apocalyptic number.

It is an amenable number.

38979953 is a deficient number, since it is larger than the sum of its proper divisors (438067).

38979953 is an equidigital number, since it uses as much as digits as its factorization.

38979953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438066.

The product of its digits is 1837080, while the sum is 53.

The square root of 38979953 is about 6243.3927475372. The cubic root of 38979953 is about 339.0630286881.

The spelling of 38979953 in words is "thirty-eight million, nine hundred seventy-nine thousand, nine hundred fifty-three".