90078275 has 12 divisors (see below), whose sum is σ = 127654032. Its totient is φ = 61767840.

The previous prime is 90078269. The next prime is 90078283. The reversal of 90078275 is 57287009.

It is not a de Polignac number, because 90078275 - 2⁶ = 90078211 is a prime.

It is a super-2 number, since 2×90078275² = 16228191253951250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257192 + ... + 257541.

It is an arithmetic number, because the mean of its divisors is an integer number (10637836).

Almost surely, 2^90078275 is an apocalyptic number.

90078275 is a deficient number, since it is larger than the sum of its proper divisors (37575757).

90078275 is a wasteful number, since it uses less digits than its factorization.

90078275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514750 (or 514745 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 90078275 is about 9490.9575386259. The cubic root of 90078275 is about 448.2703562525.

The spelling of 90078275 in words is "ninety million, seventy-eight thousand, two hundred seventy-five".