746431637 has 4 divisors (see below), whose sum is σ = 853064736. Its totient is φ = 639798540.

The previous prime is 746431633. The next prime is 746431639. The reversal of 746431637 is 736134647.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 736134647 = 37 ⋅19895531.

It is a cyclic number.

It is not a de Polignac number, because 746431637 - 2² = 746431633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 746431594 and 746431603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746431633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53316539 + ... + 53316552.

It is an arithmetic number, because the mean of its divisors is an integer number (213266184).

Almost surely, 2^746431637 is an apocalyptic number.

It is an amenable number.

746431637 is a deficient number, since it is larger than the sum of its proper divisors (106633099).

746431637 is a wasteful number, since it uses less digits than its factorization.

746431637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106633098.

The product of its digits is 254016, while the sum is 41.

The square root of 746431637 is about 27320.9011015376. The cubic root of 746431637 is about 907.1170838341.

The spelling of 746431637 in words is "seven hundred forty-six million, four hundred thirty-one thousand, six hundred thirty-seven".