90943437 has 16 divisors (see below), whose sum is σ = 130760000. Its totient is φ = 55890432.

The previous prime is 90943397. The next prime is 90943451. The reversal of 90943437 is 73434909.

It is not a de Polignac number, because 90943437 - 2¹⁰ = 90942413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90943395 and 90943404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90943487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47778 + ... + 49644.

It is an arithmetic number, because the mean of its divisors is an integer number (8172500).

Almost surely, 2^90943437 is an apocalyptic number.

It is an amenable number.

90943437 is a deficient number, since it is larger than the sum of its proper divisors (39816563).

90943437 is a wasteful number, since it uses less digits than its factorization.

90943437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 90943437 is about 9536.4268465710. The cubic root of 90943437 is about 449.7009321492.

The spelling of 90943437 in words is "ninety million, nine hundred forty-three thousand, four hundred thirty-seven".