78231461 has 12 divisors (see below), whose sum is σ = 98275296. Its totient is φ = 60958920.

The previous prime is 78231451. The next prime is 78231481. The reversal of 78231461 is 16413287.

It is not a de Polignac number, because 78231461 - 2¹⁰ = 78230437 is a prime.

It is a super-2 number, since 2×78231461² = 12240322980389042, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78231451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45335 + ... + 47028.

It is an arithmetic number, because the mean of its divisors is an integer number (8189608).

Almost surely, 2^78231461 is an apocalyptic number.

It is an amenable number.

78231461 is a deficient number, since it is larger than the sum of its proper divisors (20043835).

78231461 is a wasteful number, since it uses less digits than its factorization.

78231461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92392 (or 92381 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 78231461 is about 8844.8550581680. The cubic root of 78231461 is about 427.6880806644.

The spelling of 78231461 in words is "seventy-eight million, two hundred thirty-one thousand, four hundred sixty-one".