78361061 has 8 divisors (see below), whose sum is σ = 79347840. Its totient is φ = 77378832.

The previous prime is 78361057. The next prime is 78361097. The reversal of 78361061 is 16016387.

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 78361061 - 2² = 78361057 is a prime.

It is a super-2 number, since 2×78361061² = 12280911762091442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78361001) 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, 44351 + ... + 46083.

It is an arithmetic number, because the mean of its divisors is an integer number (9918480).

Almost surely, 2^78361061 is an apocalyptic number.

It is an amenable number.

78361061 is a deficient number, since it is larger than the sum of its proper divisors (986779).

78361061 is a wasteful number, since it uses less digits than its factorization.

78361061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 78361061 is about 8852.1783194872. The cubic root of 78361061 is about 427.9241229365.

The spelling of 78361061 in words is "seventy-eight million, three hundred sixty-one thousand, sixty-one".