61790 has 16 divisors (see below), whose sum is σ = 114912. Its totient is φ = 23904.

The previous prime is 61781. The next prime is 61813. The reversal of 61790 is 9716.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287 + ... + 453.

It is an arithmetic number, because the mean of its divisors is an integer number (7182).

2⁶¹⁷⁹⁰ is an apocalyptic number.

61790 is a deficient number, since it is larger than the sum of its proper divisors (53122).

61790 is a wasteful number, since it uses less digits than its factorization.

61790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 61790 is about 248.5759441298. The cubic root of 61790 is about 39.5341796768.

It can be divided in two parts, 617 and 90, that added together give a palindrome (707).

The spelling of 61790 in words is "sixty-one thousand, seven hundred ninety".