61938249 has 8 divisors (see below), whose sum is σ = 84598752. Its totient is φ = 40284960.

The previous prime is 61938221. The next prime is 61938277. The reversal of 61938249 is 94283916.

It is an interprime number because it is at equal distance from previous prime (61938221) and next prime (61938277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61938249 - 2⁹ = 61937737 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61938249.

It is not an unprimeable number, because it can be changed into a prime (61938049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251659 + ... + 251904.

It is an arithmetic number, because the mean of its divisors is an integer number (10574844).

Almost surely, 2^61938249 is an apocalyptic number.

It is an amenable number.

61938249 is a deficient number, since it is larger than the sum of its proper divisors (22660503).

61938249 is a wasteful number, since it uses less digits than its factorization.

61938249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503607.

The product of its digits is 93312, while the sum is 42.

The square root of 61938249 is about 7870.0857047430. The cubic root of 61938249 is about 395.6577174463.

The spelling of 61938249 in words is "sixty-one million, nine hundred thirty-eight thousand, two hundred forty-nine".