61269078 has 16 divisors (see below), whose sum is σ = 131964336. Its totient is φ = 18852000.

The previous prime is 61269073. The next prime is 61269097. The reversal of 61269078 is 87096216.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61269073) 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, 392673 + ... + 392828.

It is an arithmetic number, because the mean of its divisors is an integer number (8247771).

Almost surely, 2^61269078 is an apocalyptic number.

61269078 is an abundant number, since it is smaller than the sum of its proper divisors (70695258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61269078 is a wasteful number, since it uses less digits than its factorization.

61269078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785519.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 61269078 is about 7827.4566750637. The cubic root of 61269078 is about 394.2276806821.

The spelling of 61269078 in words is "sixty-one million, two hundred sixty-nine thousand, seventy-eight".