61677830 has 8 divisors (see below), whose sum is σ = 111020112. Its totient is φ = 24671128.

The previous prime is 61677829. The next prime is 61677841. The reversal of 61677830 is 3877616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3083882 + ... + 3083901.

It is an arithmetic number, because the mean of its divisors is an integer number (13877514).

Almost surely, 2^61677830 is an apocalyptic number.

61677830 is a deficient number, since it is larger than the sum of its proper divisors (49342282).

61677830 is a wasteful number, since it uses less digits than its factorization.

61677830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167790.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 61677830 is about 7853.5234130930. The cubic root of 61677830 is about 395.1024249687.

The spelling of 61677830 in words is "sixty-one million, six hundred seventy-seven thousand, eight hundred thirty".