91671214 has 8 divisors (see below), whose sum is σ = 138227328. Its totient is φ = 45595440.

The previous prime is 91671193. The next prime is 91671241. The reversal of 91671214 is 41217619.

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

It is a super-2 number, since 2×91671214² = 16807222952467592, which contains 22 as substring.

It is a congruent number.

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, 119607 + ... + 120370.

It is an arithmetic number, because the mean of its divisors is an integer number (17278416).

Almost surely, 2^91671214 is an apocalyptic number.

91671214 is a deficient number, since it is larger than the sum of its proper divisors (46556114).

91671214 is a wasteful number, since it uses less digits than its factorization.

91671214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240170.

The product of its digits is 3024, while the sum is 31.

The square root of 91671214 is about 9574.5085513566. The cubic root of 91671214 is about 450.8973271815.

The spelling of 91671214 in words is "ninety-one million, six hundred seventy-one thousand, two hundred fourteen".