1401636697 has 8 divisors (see below), whose sum is σ = 1453231872. Its totient is φ = 1350440400.

The previous prime is 1401636683. The next prime is 1401636713. The reversal of 1401636697 is 7966361041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401636697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401636617) 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, 92554 + ... + 106627.

It is an arithmetic number, because the mean of its divisors is an integer number (181653984).

Almost surely, 2^1401636697 is an apocalyptic number.

It is an amenable number.

1401636697 is a deficient number, since it is larger than the sum of its proper divisors (51595175).

1401636697 is a wasteful number, since it uses less digits than its factorization.

1401636697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199439.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1401636697 is about 37438.4387628544. The cubic root of 1401636697 is about 1119.1247139371.

The spelling of 1401636697 in words is "one billion, four hundred one million, six hundred thirty-six thousand, six hundred ninety-seven".