61587797 has 8 divisors (see below), whose sum is σ = 64978560. Its totient is φ = 58212000.

The previous prime is 61587751. The next prime is 61587811. The reversal of 61587797 is 79778516.

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

It is a cyclic number.

It is not a de Polignac number, because 61587797 - 2⁸ = 61587541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61587727) 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, 5297 + ... + 12297.

It is an arithmetic number, because the mean of its divisors is an integer number (8122320).

Almost surely, 2^61587797 is an apocalyptic number.

It is an amenable number.

61587797 is a deficient number, since it is larger than the sum of its proper divisors (3390763).

61587797 is a wasteful number, since it uses less digits than its factorization.

61587797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483.

The product of its digits is 740880, while the sum is 50.

The square root of 61587797 is about 7847.7893065500. The cubic root of 61587797 is about 394.9100836833.

The spelling of 61587797 in words is "sixty-one million, five hundred eighty-seven thousand, seven hundred ninety-seven".