1087078406 has 4 divisors (see below), whose sum is σ = 1630617612. Its totient is φ = 543539202.

The previous prime is 1087078381. The next prime is 1087078409. The reversal of 1087078406 is 6048707801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6048707801 = 89 ⋅67963009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087078409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271769600 + ... + 271769603.

It is an arithmetic number, because the mean of its divisors is an integer number (407654403).

Almost surely, 2^1087078406 is an apocalyptic number.

1087078406 is a deficient number, since it is larger than the sum of its proper divisors (543539206).

1087078406 is an equidigital number, since it uses as much as digits as its factorization.

1087078406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543539205.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 1087078406 is about 32970.8720843110. The cubic root of 1087078406 is about 1028.2221525522. Note that the first 3 decimals are identical.

The spelling of 1087078406 in words is "one billion, eighty-seven million, seventy-eight thousand, four hundred six".