78229054 has 4 divisors (see below), whose sum is σ = 117343584. Its totient is φ = 39114526.

The previous prime is 78229033. The next prime is 78229057. The reversal of 78229054 is 45092287.

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

It is a super-2 number, since 2×78229054² = 12239569779469832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78229057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19557262 + ... + 19557265.

It is an arithmetic number, because the mean of its divisors is an integer number (29335896).

Almost surely, 2^78229054 is an apocalyptic number.

78229054 is a deficient number, since it is larger than the sum of its proper divisors (39114530).

78229054 is a wasteful number, since it uses less digits than its factorization.

78229054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39114529.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 78229054 is about 8844.7189893179. The cubic root of 78229054 is about 427.6836942971.

The spelling of 78229054 in words is "seventy-eight million, two hundred twenty-nine thousand, fifty-four".