90953378 has 4 divisors (see below), whose sum is σ = 136430070. Its totient is φ = 45476688.

The previous prime is 90953351. The next prime is 90953393. The reversal of 90953378 is 87335909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87335909 = 337 ⋅259157.

It can be written as a sum of positive squares in only one way, i.e., 69172489 + 21780889 = 8317^2 + 4667^2 .

It is a super-2 number, since 2×90953378² = 16545033939221768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22738343 + ... + 22738346.

Almost surely, 2^90953378 is an apocalyptic number.

90953378 is a deficient number, since it is larger than the sum of its proper divisors (45476692).

90953378 is a wasteful number, since it uses less digits than its factorization.

90953378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45476691.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 90953378 is about 9536.9480443169. The cubic root of 90953378 is about 449.7173171105.

The spelling of 90953378 in words is "ninety million, nine hundred fifty-three thousand, three hundred seventy-eight".