1973901 has 8 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 1309952.

The previous prime is 1973897. The next prime is 1973903. The reversal of 1973901 is 1093791.

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 1973901 - 2² = 1973897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973903) 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, 660 + ... + 2093.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

2^1973901 is an apocalyptic number.

It is an amenable number.

1973901 is a deficient number, since it is larger than the sum of its proper divisors (669939).

1973901 is a wasteful number, since it uses less digits than its factorization.

1973901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 1973901 is about 1404.9558711931. The cubic root of 1973901 is about 125.4416589941.

It can be divided in two parts, 19 and 73901, that added together give a triangular number (73920 = T₃₈₄).

The spelling of 1973901 in words is "one million, nine hundred seventy-three thousand, nine hundred one".