39861098 has 4 divisors (see below), whose sum is σ = 59791650. Its totient is φ = 19930548.

The previous prime is 39861097. The next prime is 39861149. The reversal of 39861098 is 89016893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89016893 = 7 ⋅12716699.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 9467929 = 5513^2 + 3077^2 .

It is not an unprimeable number, because it can be changed into a prime (39861097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9965273 + ... + 9965276.

Almost surely, 2^39861098 is an apocalyptic number.

39861098 is a deficient number, since it is larger than the sum of its proper divisors (19930552).

39861098 is a wasteful number, since it uses less digits than its factorization.

39861098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19930551.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 39861098 is about 6313.5646032966. The cubic root of 39861098 is about 341.5988650972.

The spelling of 39861098 in words is "thirty-nine million, eight hundred sixty-one thousand, ninety-eight".