61390 has 16 divisors (see below), whose sum is σ = 126432. Its totient is φ = 21024.

The previous prime is 61381. The next prime is 61403. The reversal of 61390 is 9316.

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, 369 + ... + 508.

It is an arithmetic number, because the mean of its divisors is an integer number (7902).

2⁶¹³⁹⁰ is an apocalyptic number.

61390 is an abundant number, since it is smaller than the sum of its proper divisors (65042).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63216).

61390 is a wasteful number, since it uses less digits than its factorization.

61390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 61390 is about 247.7700546878. The cubic root of 61390 is about 39.4486862389.

It can be divided in two parts, 613 and 90, that added together give a triangular number (703 = T₃₇).

The spelling of 61390 in words is "sixty-one thousand, three hundred ninety".