738121801 has 8 divisors (see below), whose sum is σ = 754790400. Its totient is φ = 721591920.

The previous prime is 738121799. The next prime is 738121859. The reversal of 738121801 is 108121837.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 738121801 - 2¹ = 738121799 is a prime.

It is a super-2 number, since 2×738121801² = 1089647586222967202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738121871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23881 + ... + 45238.

It is an arithmetic number, because the mean of its divisors is an integer number (94348800).

Almost surely, 2^738121801 is an apocalyptic number.

It is an amenable number.

738121801 is a deficient number, since it is larger than the sum of its proper divisors (16668599).

738121801 is a wasteful number, since it uses less digits than its factorization.

738121801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69359.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 738121801 is about 27168.3971003076. The cubic root of 738121801 is about 903.7382785992.

The spelling of 738121801 in words is "seven hundred thirty-eight million, one hundred twenty-one thousand, eight hundred one".