61907000 has 64 divisors (see below), whose sum is σ = 149610240. Its totient is φ = 23952000.

The previous prime is 61906991. The next prime is 61907003. The reversal of 61907000 is 70916.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61907003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30002 + ... + 31998.

It is an arithmetic number, because the mean of its divisors is an integer number (2337660).

Almost surely, 2^61907000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61907000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74805120).

61907000 is an abundant number, since it is smaller than the sum of its proper divisors (87703240).

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

61907000 is a wasteful number, since it uses less digits than its factorization.

61907000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2035 counting only the distinct ones).

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

The square root of 61907000 is about 7868.1001518791. The cubic root of 61907000 is about 395.5911673577.

Adding to 61907000 its reverse (70916), we get a palindrome (61977916).

The spelling of 61907000 in words is "sixty-one million, nine hundred seven thousand".