90729546 has 8 divisors (see below), whose sum is σ = 181459104. Its totient is φ = 30243180.

The previous prime is 90729539. The next prime is 90729553. The reversal of 90729546 is 64592709.

It is an interprime number because it is at equal distance from previous prime (90729539) and next prime (90729553).

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

90729546 is an admirable number.

It is a super-2 number, since 2×90729546² = 16463701034732232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90729498 and 90729507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7560790 + ... + 7560801.

It is an arithmetic number, because the mean of its divisors is an integer number (22682388).

Almost surely, 2^90729546 is an apocalyptic number.

90729546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90729546 is a wasteful number, since it uses less digits than its factorization.

90729546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15121596.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 90729546 is about 9525.2058245478. The cubic root of 90729546 is about 449.3481029925.

The spelling of 90729546 in words is "ninety million, seven hundred twenty-nine thousand, five hundred forty-six".