61046878 has 4 divisors (see below), whose sum is σ = 91570320. Its totient is φ = 30523438.

The previous prime is 61046861. The next prime is 61046879. The reversal of 61046878 is 87864016.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61046878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61046879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15261718 + ... + 15261721.

It is an arithmetic number, because the mean of its divisors is an integer number (22892580).

Almost surely, 2^61046878 is an apocalyptic number.

61046878 is a deficient number, since it is larger than the sum of its proper divisors (30523442).

61046878 is a wasteful number, since it uses less digits than its factorization.

61046878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30523441.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 61046878 is about 7813.2501559850. The cubic root of 61046878 is about 393.7505313506.

The spelling of 61046878 in words is "sixty-one million, forty-six thousand, eight hundred seventy-eight".