87238078 has 16 divisors (see below), whose sum is σ = 135120384. Its totient is φ = 42215040.

The previous prime is 87238069. The next prime is 87238079. The reversal of 87238078 is 87083278.

It is a super-2 number, since 2×87238078² = 15220964506268168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87238079) 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, 6226 + ... + 14602.

It is an arithmetic number, because the mean of its divisors is an integer number (8445024).

Almost surely, 2^87238078 is an apocalyptic number.

87238078 is a deficient number, since it is larger than the sum of its proper divisors (47882306).

87238078 is a wasteful number, since it uses less digits than its factorization.

87238078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 87238078 is about 9340.1326543042. The cubic root of 87238078 is about 443.5085836749.

The spelling of 87238078 in words is "eighty-seven million, two hundred thirty-eight thousand, seventy-eight".