61930 has 16 divisors (see below), whose sum is σ = 121824. Its totient is φ = 22480.

The previous prime is 61927. The next prime is 61933. The reversal of 61930 is 3916.

It is an interprime number because it is at equal distance from previous prime (61927) and next prime (61933).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 61898 and 61907.

It is not an unprimeable number, because it can be changed into a prime (61933) 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, 172 + ... + 391.

It is an arithmetic number, because the mean of its divisors is an integer number (7614).

2⁶¹⁹³⁰ is an apocalyptic number.

61930 is a deficient number, since it is larger than the sum of its proper divisors (59894).

61930 is a wasteful number, since it uses less digits than its factorization.

61930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

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

The square root of 61930 is about 248.8573888797. The cubic root of 61930 is about 39.5640151965.

It can be divided in two parts, 6 and 1930, that added together give a square (1936 = 44²).

The spelling of 61930 in words is "sixty-one thousand, nine hundred thirty".