61498 has 8 divisors (see below), whose sum is σ = 93492. Its totient is φ = 30336.

The previous prime is 61493. The next prime is 61507. The reversal of 61498 is 89416.

61498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56169 + 5329 = 237^2 + 73^2 .

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (61493) by changing a digit.

61498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36 + ... + 352.

2⁶¹⁴⁹⁸ is an apocalyptic number.

61498 is a deficient number, since it is larger than the sum of its proper divisors (31994).

61498 is a wasteful number, since it uses less digits than its factorization.

61498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416.

The product of its digits is 1728, while the sum is 28.

The square root of 61498 is about 247.9879029308. The cubic root of 61498 is about 39.4718059769.

The spelling of 61498 in words is "sixty-one thousand, four hundred ninety-eight".