9090078437 has 8 divisors (see below), whose sum is σ = 9917238720. Its totient is φ = 8263049760.

The previous prime is 9090078433. The next prime is 9090078443. The reversal of 9090078437 is 7348700909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9090078437 - 2² = 9090078433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9090078391 and 9090078400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090078433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161489 + ... + 210377.

It is an arithmetic number, because the mean of its divisors is an integer number (1239654840).

Almost surely, 2^9090078437 is an apocalyptic number.

It is an amenable number.

9090078437 is a deficient number, since it is larger than the sum of its proper divisors (827160283).

9090078437 is a wasteful number, since it uses less digits than its factorization.

9090078437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65803.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 9090078437 is about 95341.9028392029. The cubic root of 9090078437 is about 2087.0004541312. Note that the first 3 decimals are identical.

The spelling of 9090078437 in words is "nine billion, ninety million, seventy-eight thousand, four hundred thirty-seven".