90429357 has 4 divisors (see below), whose sum is σ = 120572480. Its totient is φ = 60286236.

The previous prime is 90429347. The next prime is 90429373. The reversal of 90429357 is 75392409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75392409 = 3 ⋅25130803.

It is not a de Polignac number, because 90429357 - 2⁶ = 90429293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90429347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15071557 + ... + 15071562.

It is an arithmetic number, because the mean of its divisors is an integer number (30143120).

Almost surely, 2^90429357 is an apocalyptic number.

It is an amenable number.

90429357 is a deficient number, since it is larger than the sum of its proper divisors (30143123).

90429357 is a wasteful number, since it uses less digits than its factorization.

90429357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30143122.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 90429357 is about 9509.4351567272. The cubic root of 90429357 is about 448.8519823670.

The spelling of 90429357 in words is "ninety million, four hundred twenty-nine thousand, three hundred fifty-seven".