61395630 has 32 divisors (see below), whose sum is σ = 150488064. Its totient is φ = 16023456.

The previous prime is 61395629. The next prime is 61395647. The reversal of 61395630 is 3659316.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61395591 and 61395600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20362 + ... + 23181.

It is an arithmetic number, because the mean of its divisors is an integer number (4702752).

Almost surely, 2^61395630 is an apocalyptic number.

61395630 is an abundant number, since it is smaller than the sum of its proper divisors (89092434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61395630 is a wasteful number, since it uses less digits than its factorization.

61395630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43600.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 61395630 is about 7835.5363568807. The cubic root of 61395630 is about 394.4989213186.

The spelling of 61395630 in words is "sixty-one million, three hundred ninety-five thousand, six hundred thirty".