91029001 has 4 divisors (see below), whose sum is σ = 104033152. Its totient is φ = 78024852.

The previous prime is 91028957. The next prime is 91029011. The reversal of 91029001 is 10092019.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91029001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91029011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6502065 + ... + 6502078.

It is an arithmetic number, because the mean of its divisors is an integer number (26008288).

Almost surely, 2^91029001 is an apocalyptic number.

It is an amenable number.

91029001 is a deficient number, since it is larger than the sum of its proper divisors (13004151).

91029001 is a wasteful number, since it uses less digits than its factorization.

91029001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004150.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 91029001 is about 9540.9119585079. The cubic root of 91029001 is about 449.8419214305.

The spelling of 91029001 in words is "ninety-one million, twenty-nine thousand, one".