1401777793 has 8 divisors (see below), whose sum is σ = 1518648768. Its totient is φ = 1286198544.

The previous prime is 1401777791. The next prime is 1401777827. The reversal of 1401777793 is 3977771041.

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 1401777793 - 2¹ = 1401777791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401777791) 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, 320671 + ... + 325012.

It is an arithmetic number, because the mean of its divisors is an integer number (189831096).

Almost surely, 2^1401777793 is an apocalyptic number.

1401777793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1401777793 is a deficient number, since it is larger than the sum of its proper divisors (116870975).

1401777793 is a wasteful number, since it uses less digits than its factorization.

1401777793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645863.

The product of its (nonzero) digits is 259308, while the sum is 46.

The square root of 1401777793 is about 37440.3230888837. The cubic root of 1401777793 is about 1119.1622649713.

The spelling of 1401777793 in words is "one billion, four hundred one million, seven hundred seventy-seven thousand, seven hundred ninety-three".