90928970 has 32 divisors (see below), whose sum is σ = 179577216. Its totient is φ = 32875200.

The previous prime is 90928969. The next prime is 90928991. The reversal of 90928970 is 7982909.

90928970 = T₂₃₃₁ + T₂₃₃₂ + ... + T₂₃₆₃.

90928970 = 1416² + 1417² + ... + 1459².

It is a super-4 number, since 4×90928970⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17627 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (5611788).

Almost surely, 2^90928970 is an apocalyptic number.

90928970 is a deficient number, since it is larger than the sum of its proper divisors (88648246).

90928970 is a wasteful number, since it uses less digits than its factorization.

90928970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 90928970 is about 9535.6683037950. The cubic root of 90928970 is about 449.6770852079.

The spelling of 90928970 in words is "ninety million, nine hundred twenty-eight thousand, nine hundred seventy".