87880426 has 4 divisors (see below), whose sum is σ = 131820642. Its totient is φ = 43940212.

The previous prime is 87880423. The next prime is 87880451. The reversal of 87880426 is 62408878.

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

It can be written as a sum of positive squares in only one way, i.e., 84658401 + 3222025 = 9201^2 + 1795^2 .

It is a super-5 number, since 5×87880426⁵ (a number of 41 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (87880421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21970105 + ... + 21970108.

Almost surely, 2^87880426 is an apocalyptic number.

87880426 is a deficient number, since it is larger than the sum of its proper divisors (43940216).

87880426 is a wasteful number, since it uses less digits than its factorization.

87880426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43940215.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 87880426 is about 9374.4560375523. The cubic root of 87880426 is about 444.5944645270.

The spelling of 87880426 in words is "eighty-seven million, eight hundred eighty thousand, four hundred twenty-six".