61895801 has 4 divisors (see below), whose sum is σ = 67522704. Its totient is φ = 56268900.

The previous prime is 61895761. The next prime is 61895803. The reversal of 61895801 is 10859816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61895801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61895803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813435 + ... + 2813456.

It is an arithmetic number, because the mean of its divisors is an integer number (16880676).

Almost surely, 2^61895801 is an apocalyptic number.

It is an amenable number.

61895801 is a deficient number, since it is larger than the sum of its proper divisors (5626903).

61895801 is a wasteful number, since it uses less digits than its factorization.

61895801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626902.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 61895801 is about 7867.3884485260. The cubic root of 61895801 is about 395.5673117213.

The spelling of 61895801 in words is "sixty-one million, eight hundred ninety-five thousand, eight hundred one".