61669594 has 8 divisors (see below), whose sum is σ = 105719328. Its totient is φ = 26429820.

The previous prime is 61669589. The next prime is 61669607. The reversal of 61669594 is 49596616.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202472 + ... + 2202499.

It is an arithmetic number, because the mean of its divisors is an integer number (13214916).

Almost surely, 2^61669594 is an apocalyptic number.

61669594 is a deficient number, since it is larger than the sum of its proper divisors (44049734).

61669594 is a wasteful number, since it uses less digits than its factorization.

61669594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404980.

The product of its digits is 349920, while the sum is 46.

The square root of 61669594 is about 7852.9990449509. Note that the first 3 decimals coincide. The cubic root of 61669594 is about 395.0848378367.

The spelling of 61669594 in words is "sixty-one million, six hundred sixty-nine thousand, five hundred ninety-four".